Category Archives: Gilisoft USB Lock

USB Tethering: Complete Guide 2025 – What It Is, How to Use, Risks & Disable

Table of Contents

  • 1. What Is USB Tethering?
    • 1.1 Key Differences Between USB Tethering & Mobile Hotspot
    • 1.2 Why Use USB Tethering? 5 Core Advantages
  • 2. How to Set Up USB Tethering (Android & iOS)
    • 2.1 Prerequisites for USB Tethering
    • 2.2 Step-by-Step Guide for Android
    • 2.3 Step-by-Step Guide for iOS
  • 3. Troubleshoot Common USB Tethering Issues
  • 4. What Are the Risks of USB Tethering?
    • 4.1 Enterprise-Specific Risks
    • 4.2 Personal Device Risks
  • 5. How to Disable USB Tethering (GiliSoft USB Lock)
    • 5.1 3-Step Disable Process (One-Click Checkbox)
    • 5.2 Keep Legitimate USB Devices (e.g., Keyboards)
  • 6. USB Tethering FAQ
  • 7. Final Thoughts

1. What Is USB Tethering?

What is USB Tethering? This wired network sharing tool lets you connect your phone to a computer via a USB cable, sharing the phone’s 4G/5G or mobile data with the computer. Unlike Wi-Fi hotspots, it relies on a physical USB connection to create a stable data channel—no wireless signal required.

1.1 Key Differences Between USB Tethering & Mobile Hotspot

Many users mix up USB Tethering with Wi-Fi hotspots, but their use cases and performance vary significantly:

Comparison DimensionUSB TetheringMobile Hotspot (Wi-Fi Sharing)
Connection MethodWired (USB cable)Wireless (Wi-Fi signal)
Network StabilityStrong (no wireless interference)Weak (affected by distance/walls)
Phone Battery ImpactLow (charges while sharing)High (Wi-Fi transmission drains power)
Computer RequirementOnly USB port (no Wi-Fi)Must have Wi-Fi capability
Best ForLarge-file downloads, video callsMulti-device sharing (phones/tablets)

1.2 Why Use USB Tethering? 5 Core Advantages

USB Tethering stands out for scenarios where reliability and compatibility matter most:

  • No Wi-Fi needed for old devices: Older desktops or industrial computers without Wi-Fi modules can still access the internet via USB—no extra hardware required.
  • Battery-friendly for phones: The USB cable charges the phone while sharing data, avoiding the “dead battery” issue common with Wi-Fi hotspots.
  • Faster & more stable speeds: Wired connections skip wireless interference (e.g., from microwaves or other Wi-Fi networks), delivering 20-30% faster speeds for tasks like 4K video downloads.
  • Works with hotspot-disabled phones: Some old or custom-system phones lack hotspot features, but USB Tethering works as long as they support data transfer.
  • Higher security: Unlike Wi-Fi hotspots (which risk hijacking), only the USB-connected computer can access the network—no unauthorized leeching).

2. How to Set Up USB Tethering (Android & iOS)

Setting up USB Tethering takes 5 minutes or less, but you need to prepare the right tools first.

2.1 Prerequisites for USB Tethering

  • data-supported USB cable (use the original phone cable—avoid “charging-only” cables, which can’t transfer data).
  • Phone with active mobile data (4G/5G recommended) and no data caps.
  • Computer with phone drivers installed (Windows/macOS usually auto-installs them; check Android Official Support if stuck).

2.2 Step-by-Step Guide for Android (Android 14 Example)

  1. Connect your phone to the computer via USB. A pop-up on the phone will ask “Use USB for?”—select “Transfer files” (not “Charging only”).
  2. Open your phone’s Settings → Search for “Portable Hotspot” (or “Mobile Network Sharing” on Huawei/Xiaomi).
  3. Find the USB Tethering toggle (gray if not connected via USB) and switch it to “On.”
  4. Confirm the permission prompt on the phone (“Allow this device to use data?”) → Tap “Allow.”
  5. Check the computer’s network icon (taskbar for Windows, menu bar for macOS)—it will show “Connected via USB Ethernet.”

2.3 Step-by-Step Guide for iOS (iOS 17 Example)

  1. Connect your iPhone to the computer with a Lightning/USB-C cable. On the iPhone, tap “Trust This Computer” when prompted.
  2. On the iPhone, go to Settings → Personal Hotspot.
  3. Toggle on Allow Others to Join → Enable USB Only (under “Allow Access When Locked” to avoid disconnections).
  4. For macOS: Open System Settings → Network—you’ll see “iPhone USB” listed as a connected network.
  5. For Windows: Check the taskbar network icon—“iPhone USB” will appear as an active connection.

3. Troubleshoot Common USB Tethering Issues

Users often search for “USB Tethering not working”—here’s how to fix top problems:

  • Issue 1: USB Tethering toggle is grayed out
    Solution: Use a data-capable USB cable (test with another cable if needed); reinstall phone drivers via Apple Support (iOS) or Android Debug Bridge (Android).
  • Issue 2: Computer doesn’t detect the connection
    Solution: On Android, enable “Developer Options” (tap “Build Number” 7 times in Settings → About Phone) → Turn on “USB Debugging.” On iOS, restart both the phone and computer.
  • Issue 3: Slow USB Tethering speed
    Solution: Switch the phone to 5G (Settings → Mobile Data → 5G On); close background apps (e.g., Netflix, games) that use data.

4. What Are the Risks of USB Tethering?

While convenient, USB Tethering carries hidden risks—especially for businesses or users handling sensitive data.

4.1 Enterprise-Specific Risks

  • Bypasses network security: Employees using USB Tethering can skip company firewalls and DLP (Data Loss Prevention) tools, sending internal files to personal emails via unmonitored mobile data.
  • Compliance violations: Industries like healthcare (HIPAA) or finance (PCI DSS) require strict network controls—unauthorized USB Tethering can lead to non-compliance fines.

4.2 Personal Device Risks

  • Cross-device malware: A virus on your computer can spread to your phone via the USB cable (e.g., ransomware stealing photos/contacts).
  • Data overage fees: If your phone has a limited data plan, computer tasks like Windows updates or app downloads can quickly exceed your limit.
  • Hardware damage: Low-quality USB cables may cause short circuits, damaging the phone’s USB port or the computer’s USB slot.

5. How to Disable USB Tethering (GiliSoft USB Lock)

Enterprises, schools, or families needing to block USB Tethering can use GiliSoft USB Lock—it requires no complex setup, just a one-click checkbox.

DRM Protection

5.1 3-Step Disable Process (One-Click Checkbox)

  1. Prepare GiliSoft USB Lock: Download the official version from GiliSoft’s website and install it on Windows 10/11. Set an admin password to prevent unauthorized changes.
  2. Access the control panel: Launch the software → Click USB Device Control (left menu; some versions label it “Network Sharing Control”).
  3. Tick to disable: Find the Disable USB Tethering checkbox (usually under “Network Restrictions”) → Click it to turn it “checked.” The setting saves automatically—no “Apply” button needed.

5.2 Keep Legitimate USB Devices (e.g., Keyboards)

GiliSoft USB Lock only blocks USB Tethering—not regular USB peripherals. Your keyboard, mouse, or printer will work normally because the tool targets network sharing functionality specifically. No extra configuration is required.

6. USB Tethering FAQ

  • Q: Does USB Tethering use more data than Wi-Fi hotspots?
    A: No—data usage depends on your computer’s activity (e.g., streaming, downloads). USB Tethering may even use data more efficiently, as it avoids Wi-Fi signal loss.
  • Q: Can I use USB Tethering on macOS Ventura/Sonoma?
    A: Yes—connect your iPhone/Android via USB, enable Tethering on the device, and macOS will auto-detect the connection (check “System Settings → Network”).
  • Q: Is USB Tethering safe for work laptops?
    A: No—IT teams often block it because it bypasses company security. Use it only if your employer explicitly allows it.
  • Q: Why does my USB Tethering disconnect when the phone locks?
    A: On iOS, enable “Allow Access When Locked” in Personal Hotspot settings. On Android, disable “Battery Saver” (it may cut USB connections to save power).

7. Final Thoughts

USB Tethering is a reliable tool for users needing stable, wired network sharing—perfect for old computers or areas with weak Wi-Fi. But for enterprises, it’s a security risk that should be blocked with tools like GiliSoft USB Lock.

To get the most out of USB Tethering: Use original USB cables, monitor data usage, and update your phone’s OS regularly. For long-term use, consider an unlimited data plan to avoid overage fees.

If you’re an IT admin, test GiliSoft USB Lock’s one-click disable feature to keep your network compliant. For casual users, bookmark this guide to troubleshoot issues quickly!

In-depth Comparison Between USB Lock and File Lock Pro: Functional Differences, Application Scenarios, and Selection Guide for USB Drive Security Protection

In digital office work and personal data storage, USB drives have become an important carrier for data transmission due to their portability. However, they also face security risks such as data leakage and unauthorized access. As two mainstream security protection software for USB drives, USB Lock and File Lock Pro construct protection systems from different dimensions respectively. This article will conduct an in-depth comparison of the core functional differences between the two, and provide users with an accurate software selection guide based on practical application scenarios.​

I. Core Functional Differences: The Divergence Between “Device Management” and “File Protection” Paths​

There is an essential difference in the functional design logic between USB Lock and File Lock Pro. The former focuses on “device-level access and behavior management”, while the latter emphasizes “file-level encryption and permission locking”. The specific differences are shown in the following table and detailed explanations:​

Functional Dimension​Core Capabilities of USB Lock​Core Capabilities of File Lock Pro​
Core Protection Logic​Device access control to block unauthorized USB drive access and irregular operations​File entity protection to restrict file access and copying through encryption and hiding​
Encryption Mechanism​Only encrypts transmission data of authorized devices, without actively encrypting files in USB drives​AES-256 high-strength encryption, converting files into exclusive formats (.gfl/.exe) that require a password for decryption​
Anti-copy Implementation​Prohibit USB drive write permissions or restrict device access to block copying from the source​Does not prevent recording/printing; indirectly prevents copying by making files invisible and inaccessible through “deep hiding + password locking”​
Device Management Scope​Covers almost all external devices such as USB/SD drives, CD/DVDs, mobile phones, printers, and Bluetooth​Only targets files in USB drives and storage devices, with no external device management capabilities​
Logging and Monitoring​Records detailed USB device access time, file operations (creation/deletion/modification), and authorization/denial history​No device operation logging function; only records file encryption/decryption operations within the software​

1. USB Lock: Building a Security Boundary with “Device Management”​

(1) USB Device Access and Permission Management​

As a core function, USB Lock supports a “whitelist mechanism”, which only allows trusted USB drives added by administrators to access the computer. Unauthorized devices (such as employees’ personal USB drives and external storage devices) will be directly blocked, and a custom prompt message (e.g., “Unauthorized USB drives are prohibited on this device”) can be set when blocking. At the same time, the software can flexibly set the read and write permissions of USB drives:​

  • Read-only Mode: Allows reading data from the USB drive but prohibits writing, suitable for public computers (such as school computer labs) to prevent virus intrusion;​
  • Write-only Mode: Allows writing data to the USB drive but prohibits reading, applicable to enterprise “data collection” scenarios (e.g., employees can only write reports to designated USB drives);​
  • Complete Disabling: Completely blocks the read and write access of USB drives, suitable for high-risk scenarios such as industrial control and confidential office work.​

(2) Multi-device Collaborative Management and Log Tracing​

In addition to USB drives, USB Lock can extend management to CD/DVD drives (disabling reading/burning), mobile phones (prohibiting data transmission via USB connection), Bluetooth/infrared devices (blocking wireless data transmission), and even disable hardware interfaces such as serial ports (com ports) and parallel ports (lpt ports), forming an “all-external-device protection network”.​

Meanwhile, the software’s logging function can retain operation records for more than 6 months, including information such as “device access time, device number, operator (needs to be bound to a computer account), and file transmission path”. In case of data leakage, administrators can quickly locate the responsible person through logs, meeting the audit needs of enterprises.​

2. File Lock Pro: Achieving Precise Protection with “File Protection”​

(1) AES-256 Encryption and Deep Hiding​

File Lock Pro adopts the internationally recognized AES-256 encryption algorithm to perform “byte-by-byte encryption” on files in USB drives. Encrypted files cannot be opened in a conventional way (e.g., encrypting a .doc document into a .gfl format, which requires launching the software and entering a password to decrypt after double-clicking). Even if the USB drive is lost, third parties cannot crack the file content without the password.​

In addition, the software’s “deep hiding” function is far superior to the built-in hiding function of the system: hidden files are not only invisible in the regular file manager but also cannot be detected when the Windows “Show hidden files” option is enabled, when entering safe mode, or when using third-party file recovery tools. They can only be retrieved through the “hidden file management” function within the software, making it suitable for protecting highly sensitive personal privacy or enterprise core files.​

(2) File Anti-copy and Permission Locking​

It should be clearly stated that the “anti-copy” function of File Lock Pro does not prevent recording or printing but is achieved through “permission blocking”:​

  • Undecrypted Files: Cannot perform operations such as copying, dragging, compressing, or renaming, and the system will prompt “insufficient permissions”;​
  • Decrypted but Set to “Read-only” Files: Only allow viewing the content, and prohibit modification, deletion, or format conversion.​

For example, for a USB drive storing enterprise product design drawings, setting it to “encryption + read-only” mode can ensure that authorized employees can only view the drawings and cannot copy or tamper with them privately, avoiding the leakage of core technologies.​

II. Application Scenarios: Matching Needs to Maximize Protection Value​

The functional differences between the two software determine the boundaries of their application scenarios. The selection should be based on factors such as the user (enterprise/individual) and scenario risks (data leakage/device abuse). The specific adaptation situations are as follows:​

1. USB Lock: Suitable for Scenarios Requiring “Unified Management of External Devices”​

(1) Medium and Large Enterprise Office Scenarios​

  • Core Requirement: Prevent employees from using personal USB drives to copy company data, avoid virus spread through external devices, and realize traceability of device operations.​
  • Adaptation Logic: Through the “whitelist + read-write permission management”, only allow USB drives uniformly purchased by the enterprise to access, and prohibit the use of personal devices; the logging function can monitor the USB operations of departments such as sales and R&D to prevent the leakage of customer information and technical documents.​
  • Case: An Internet company managed 500 office computers through USB Lock, added 200 enterprise-exclusive USB drives to the whitelist, and no data leakage incidents caused by USB drives occurred within 3 months.​

(2) Public Computer Locations​

  • Core Requirement: Protect the resources in public devices from tampering or copying, and prevent users from accessing USB drives with viruses to affect device stability.​
  • Adaptation Logic: Set the USB drive to “read-only mode” to allow users to read public resources (such as e-books in libraries) but prohibit data writing; at the same time, disable the CD/DVD burning function to avoid private copying of public resources.​
  • Case: A university computer lab managed 100 computers through USB Lock, only opening the “read-only USB permission”. Within one semester, the virus infection rate of the computer lab decreased by 90%, and no leakage of public teaching materials occurred.​

(3) Industrial Control and Confidential Scenarios​

  • Core Requirement: Block the intrusion of external devices into the industrial control system, and prevent malicious programs from disrupting the production process or stealing confidential data.​
  • Adaptation Logic: Completely disable all external device ports such as USB interfaces, Bluetooth, and infrared, and only retain the connection permission of industrial-specific devices (such as PLC programmers) to build a “physical isolation protection”.​
  • Case: An automobile factory installed USB Lock on 30 control computers of the production line, disabled all external devices, and effectively avoided production interruptions caused by industrial control virus intrusion through USB drives.​

2. File Lock Pro: Suitable for Scenarios Requiring “Precise Protection of Sensitive Files”​

(1) Enterprise Core Departments (R&D/Finance)​

  • Core Requirement: Protect highly sensitive files such as technical patents and financial data, and prevent private copying by internal employees or theft by external personnel.​
  • Adaptation Logic: Perform AES-256 encryption + deep hiding on R&D drawings, financial statements, and other files, and only allow authorized department heads to have the decryption password; at the same time, set “read-only permissions” to avoid file tampering.​
  • Case: The R&D department of a medical device company encrypted 500 product design documents through File Lock Pro, and only 10 core personnel had the decryption permission, with no leakage of technical materials.​

(2) Personal Privacy Protection Scenarios​

  • Core Requirement: Prevent personal privacy (such as family photos, medical records, and bank statements) from being viewed by others after the USB drive is lost.​
  • Adaptation Logic: Encrypt and hide privacy files. Even if the USB drive is found, third parties cannot find the files or decrypt the content without the password.​
  • Case: A user encrypted a USB drive storing personal medical reports through File Lock Pro. Later, the USB drive was accidentally lost, but the finder could not decrypt it, resulting in no privacy leakage.​

(3) Industry-compliant Storage Scenarios​

  • Core Requirement: Meet the compliance requirements for data storage in industries such as medical care and finance (e.g., Data Security Law, Personal Financial Information Protection Technical Specifications), and ensure encrypted storage of sensitive data.​
  • Adaptation Logic: Encrypt files such as patient medical records and customer financial information, and retain encryption records to meet the audit requirements of regulatory authorities.​
  • Case: A hospital encrypted USB drives storing electronic patient medical records through File Lock Pro, which met the compliance requirements for encrypted data storage in the medical industry and passed the inspection of regulatory authorities.​

III. Selection Guide: Three Steps to Lock in the Most Suitable USB Drive Security Solution​

When facing the two software, there is no need to struggle with “which one is better”. You can make an accurate selection only by judging based on “protection goals, application scenarios, and management costs” in three steps:​

Step 1: Clarify the Core Protection Goal​

  • If the goal is to “prevent unauthorized USB drive access and manage device operation behaviors”, prioritize USB Lock (it mainly solves the problem of “device abuse”);​
  • If the goal is to “protect files in USB drives from being cracked, copied, or tampered with”, prioritize File Lock Pro (it mainly solves the problem of “file leakage”).​

Step 2: Match Practical Application Scenarios​

Application Scenario​Recommended Software​Key Decision Points​
Enterprise-wide office device management​USB Lock​Needs to uniformly manage external devices of a large number of computers, and the logging function can meet audit needs​
Sensitive file protection for individuals/small teams​File Lock Pro​No device management permission is required, only precise file protection is needed, and it is easy to operate without professional technology​
Public computers (computer labs/libraries)​USB Lock​Needs to prevent users from abusing USB drives, and the read-only mode can balance “resource sharing” and “security protection”​
Compliant storage in medical/financial industries​File Lock Pro​AES-256 encryption meets industry compliance requirements, and deep hiding can protect customer/patient privacy​
Industrial control/confidential scenarios​USB Lock​Needs to disable all external devices to build physical isolation protection and avoid device intrusion risks​

Step 3: Consider Management Costs and Operation Threshold​

  • USB Lock: Requires administrators to perform unified configuration (such as setting whitelists and assigning permissions), suitable for enterprises with IT teams; the operation threshold is relatively high, and individual users may need learning costs.​
  • File Lock Pro: No complex configuration is required, and individuals or small teams can use it directly (e.g., right-click to encrypt files); it can be used without administrator permissions, suitable for non-technical users.​

IV. Conclusion: Not “Either/Or”, but “Matching Needs”​

USB Lock and File Lock Pro are not opposites but protect USB drive security from different dimensions:​

  • USB Lock is a “device doorman”, which builds a “macro security boundary” by managing external device access and operations;​
  • File Lock Pro is a “file safe”, which realizes “micro-precise protection” by encrypting and hiding to lock file permissions.​

In practical applications, “collaborative protection” can even be realized: for example, an enterprise first manages USB drive access permissions through USB Lock, and then encrypts core files in USB drives through File Lock Pro, building a “device + file” dual security system to minimize the data security risks of USB drives.

About Gilisoft USB Lock: A Comprehensive Analysis of Licensing and Product Advantages

Many users have questions about the license duration and purchase models when paying attention to Gilisoft USB Lock. Here, we will explain in detail based on the official website information, and also take you to a deeper understanding of this practical security tool to see what it can bring to data security protection.

DRM Protection

License Duration and Purchase Models: Choose as Needed, Flexible Adaptation

According to the official website, Gilisoft USB Lock offers two clear licensing plans for single devices to meet the needs of different users:

  • 1 Year/1 PC Version: It is an annual subscription model with a clear validity period. The original price is $49.95, and the current special price is $39.95. It can be used on 1 computer for 1 year and enjoy free update services within 1 year. Suitable for users who need short-term use or want to experience the functions first.
  • Lifetime/1 PC Version: It is a one-time purchase model with no validity period restrictions. The original price is $59.95, and the special price is $49.95. It supports lifetime use on 1 computer and enjoys free updates for life. Suitable for users who need long-term data protection and pursue a once-and-for-all solution.

In addition, the official website also provides the Lifetime/3 PC version (special price $99.95), as well as suites containing multiple encryption tools (such as #1 Encryption Toolkit Suite 2025, special price $79.99) and all-in-one tool suites, to meet the needs of users with multiple devices or multi-functional requirements.

Detailed Introduction to Gilisoft USB Lock: Professional Protection, Meticulous

As a security tool focusing on USB device access control, Gilisoft USB Lock has become the first choice for many users to protect data security with its rich functions and rigorous design. Its core functions are mainly reflected in the following aspects:

Precise Device Control Capability

It can perform refined management of various USB devices, including common USB interface devices such as USB flash drives, mobile hard drives, smartphones, and cameras. Users can set “allow” or “forbid” rules according to their needs. For example, only specific brands or models of USB devices are allowed to access the computer, blocking unauthorized device access from the source and avoiding security risks brought by unfamiliar devices.

Flexible Permission Grading Settings

The software supports detailed division of read and write permissions for USB devices. You can set some devices to only read data but not write, preventing important files from being maliciously tampered with or copied; you can also completely prohibit read and write operations of some devices to ensure that sensitive data will not be leaked through the USB interface. This kind of graded permission management makes data protection more targeted, which can not only meet normal work needs but also build a solid security defense line.

Comprehensive Security Protection Mechanism

In addition to basic device control, Gilisoft USB Lock also has a number of additional security functions. It can record all access logs of USB devices, including device name, access time, operation behavior and other information, which is convenient for users to trace the use of devices. Once an abnormality occurs, it can be quickly checked. At the same time, the software uses encryption technology to protect its own settings, preventing unauthorized users from modifying protection rules without permission, and ensuring the stability of the protection system.

Simple and Easy-to-Use Operation Interface

Despite its powerful functions, the operation of the software is not complicated. The intuitive interface design allows users to get started quickly. Whether it is setting device access rules, viewing log records, or adjusting permission parameters, it can be completed with simple clicks. Even users who are not very familiar with computer operations can easily master the core functions to achieve efficient data protection.

Why Choose Gilisoft USB Lock?

In addition to flexible licensing plans and powerful functions, the core value of Gilisoft USB Lock is also reflected in the following points:

  • Convenient Licensing Service: The key will be automatically sent within a few minutes after purchase, no need to wait; free technical support and 24-hour email help are provided to solve various problems in use.
  • Continuous Function Upgrades: Whether it is an annual subscription or a lifetime license, you can enjoy free updates to ensure that the software functions are always adapted to the latest system environment and security needs.

Whether it is personal users protecting private data or enterprises preventing internal information leakage, Gilisoft USB Lock can provide a reliable solution. Choose the appropriate licensing plan according to your usage scenario to make data security protection more efficient and worry-free.

Risks and Prevention of USB Tethering

In the context of the increasing popularity of mobile office, the USB tethering function of mobile phones brings great convenience to us. However, at the same time, it also brings many potential risks to the data security of computers. It is crucial to understand these risks and take effective measures to disable this function to ensure data security.​

I. Functions of USB Tethering​

Simply put, USB tethering is a function that shares the mobile phone’s network connection with other devices such as computers through a USB data cable. When we are in an environment without Wi-Fi or wired network, we only need a USB cable to connect the mobile phone and the computer, and turn on the USB tethering function of the mobile phone. Then the computer can access the Internet through the mobile phone’s mobile data (4G, 5G) or the connected Wi-Fi network. Compared with Wi-Fi hotspot sharing, this method has a more stable connection, less interference, and a relatively higher data transmission rate. Moreover, while sharing the network, data can be transmitted between the mobile phone and the computer through the data cable, which can be said to kill two birds with one stone. For example, when it is necessary to handle urgent work tasks outdoors and there is no available network around, USB tethering can come in handy, allowing the computer to quickly connect to the network and carry out work.​

II. Risks to Computer Data Security​

(I) Network Boundary Breakthrough​

For confidential computers or computers in internal private networks, they should maintain strict physical isolation from the Internet. However, once connected via mobile phone USB tethering, it is like opening a gap in the originally closed network boundary, allowing the computer to directly access the public network. This undoubtedly provides an opportunity for external malicious attackers, who can easily bypass the originally complex network protection system, directly enter the internal network, and steal or tamper with data in the computer.​

(2) Malware Propagation​

As a device connected to the public network, mobile phones are faced with many threats from malware in daily use. When a mobile phone is connected to a computer via USB and shares the network, the hidden malware on the mobile phone is very likely to infect the computer through this opportunity. Once these malware run on the computer, they may perform various dangerous operations, such as stealing users’ login accounts, passwords and other sensitive information, transmitting important files in the computer to external servers, and even controlling the computer’s hardware devices, causing serious damage to the computer system. Moreover, since computers are often in an office network environment, malware may further spread to the entire office network using the computer as a springboard, leading to larger – scale data security accidents.​

(3) Risk of Data Leakage​

Malicious users can use the connection of mobile phone USB tethering to actively transmit confidential files, trade secrets and other important data in the computer to the outside through the mobile phone network without the computer user’s knowledge. In addition, some malware may automatically scan files in the computer in the background, screen out sensitive data and quietly send them out through the mobile phone network. Because data transmission is carried out through the mobile phone as an intermediate device, it becomes more difficult to track the source of data leakage, which greatly increases the risk and loss of data leakage.​

III. Methods and Disadvantages of Disabling USB Tethering​

(I) BIOS/UEFI Settings​

When the computer starts, press a specific key (the key may vary for different brand computers, commonly F2, F10, Delete, etc.) to enter the BIOS/UEFI settings interface. In the BIOS/UEFI menu, find the settings related to USB, which are usually located under the “Advanced” or “Security” menu. Here, set “USB Controller”, “USB Support” or similar options to “Disabled”. Save the settings and exit BIOS/UEFI. After the computer restarts, all USB ports will be disabled, including the ports used to connect mobile phones to implement USB tethering.​

This method has significant disadvantages. It disables all USB ports, which means that common USB devices such as USB mice, keyboards, and U disks cannot be used normally, seriously affecting daily work and operations. Users need to prepare additional non – USB interface devices for replacement, bringing great inconvenience.​

(2) Device Manager Disabling​

Right – click the “Start” button and select “Device Manager”; or enter “Device Manager” in the search bar and open it. In Device Manager, find “USB Controllers” or “Universal Serial Bus Controllers”. After expanding this option, right – click the USB Root Hub you want to disable and select “Disable Device”. After performing this operation, all USB devices connected to this controller will be unavailable, including the mobile phone connection used for USB tethering.​

The disadvantage of this method is that it can only disable the controller corresponding to the currently connected USB device. If you replace the USB port to insert a new device or re – enable the disabled controller, the device can still be recognized and used. It cannot fundamentally and long – term prevent the activation of the USB tethering function, and the protection effect is limited and unstable.​

(3) Group Policy Settings​

For Windows systems, run “gpedit.msc” to open the Group Policy Editor. In the Group Policy Editor, expand “Computer Configuration” → “Administrative Templates” → “System” → “Device Installation” → “Device Installation Restrictions” in sequence. Find the option “Prevent installation of devices not described by other policy settings” or “Prevent installation of removable devices”, double – click to open it, select “Enabled”, and then click “OK”. In this way, you can prevent the computer from installing new USB devices, thereby preventing mobile phones from connecting to the computer through the USB tethering function.​

However, this method only takes effect on devices that comply with group policy rules. For some devices that have undergone special driver modifications or can bypass group policy detection, it may not be able to completely prevent their connection, resulting in certain security vulnerabilities. Moreover, the steps of group policy settings are relatively complex. For non – professional users, the operation is difficult, and it is easy to set errors, leading to abnormalities in other functions.​

IV. GiliSoft USB Lock Helps Solve the Problem​

From the disadvantages of the above three methods, it can be seen that when disabling USB tethering, they either affect the normal use of other devices, or have poor protection effects, or are complicated to operate. As a professional third – party software, GiliSoft USB Lock shows significant advantages of being convenient, simple and having no side effects in disabling USB tethering.​

DRM Protection

(I) Powerful Data Protection​

GiliSoft USB Lock adopts advanced data leakage prevention technology, which can accurately lock the function of USB ports for network sharing, and at the same time, it does not affect the use of other normal USB devices such as mice, keyboards, and office U disks. It fundamentally eliminates the risk of data transmission through USB tethering and does not interfere with the daily operation of the computer. At the same time, the software can also set the DVD/CD burner to read – only to prevent data theft by burning optical discs.​

(2I) Flexible Device Management​

Users can easily create a trusted device whitelist through GiliSoft USB Lock. With just a few simple operations, necessary USB devices can be added to the whitelist to enable them to connect to the computer normally, while other unauthorized devices, including mobile phones, will be automatically blocked from connecting. This flexible management method not only meets the user’s needs for using necessary devices but also maximizes data security. The operation is convenient, and even non – professional users can easily get started. For example, enterprises can add specific U disks needed for office work to the whitelist, while employees’ personal mobile phones and other devices cannot access the company’s computers, effectively preventing internal data leakage.​

(3) Comprehensive Activity Monitoring​

The software provides complete reporting and logging functions, which can record the activities of USB devices in detail, including file operations on all USB disks connected to the computer, such as creating and deleting files. At the same time, it can also record the history of denied and allowed access as well as the active whitelist and other information. Through these records, users can clearly understand the usage of USB devices, and take timely measures to deal with any abnormalities, making the protection more proactive and accurate.​

(4) Strong Self – Protection​

GiliSoft USB Lock has a strong self – protection mode. Without the correct password, no one can uninstall the software. Users can also set it to stealth mode to further improve the security of the software. When someone enters the wrong password more than 5 times, the software will send an alarm notification to the user’s predefined email and temporarily prohibit unknown logins, effectively preventing others from maliciously cracking the software settings and ensuring that the software can always play a stable protective role.​

To sum up, with its convenient operation, accurate protection and no side effects, GiliSoft USB Lock provides users with an efficient solution for disabling USB tethering and managing USB devices, helping users easily cope with data security challenges and ensuring comprehensive protection of computer data.

Efficient Deployment of Gilisoft USB Lock: A Batch Solution Based on USBTool.exe

In enterprise IT management, efficiently deploying USB device management software across dozens or even hundreds of standalone Windows PCs that are not joined to a domain has always been a challenging issue for administrators. Manually configuring each device is not only time-consuming and labor-intensive but also prone to strategy inconsistencies due to operational differences, posing potential risks of data leakage. To address this pain point, leveraging the command-line functionality of the designated version of USBTool.exe, a supporting tool for Gilisoft USB Lock, we can establish a standardized and automated batch deployment process, enabling efficient synchronization of core configurations such as passwords and whitelists.

I. Deployment Pain Points and Tool Value

Deploying USB management software in a standalone PC environment faces three major challenges: first, cumbersome configuration, as each device requires manual setup of passwords, whitelists, and other rules; second, difficulty in ensuring consistency, as manual operations are prone to parameter deviations; third, high post-maintenance costs, as strategy updates require repeated operations on each device.

The emergence of USBTool.exe provides key support for solving these problems. This tool realizes core functions such as password export/import, whitelist migration, and log management through command-line parameters, transforming “single-device configuration” into “template reuse” and increasing batch deployment efficiency by over 80%. Its command design is in line with administrators’ operational habits, allowing quick mastery without complex programming skills.

II. Analysis of Core Functions of USBTool.exe

The four major command modules of this tool form the technical foundation for batch deployment, with the functions of each module as follows:

1. Password Management Module

  • /GetPW “path”: Exports the password file from the configured template machine, generating an encrypted password template to avoid the risk of plaintext transmission.
  • /SetPW “path”: Imports the password file into the target machine, ensuring all devices use a unified management password and eliminating password confusion.

2. Whitelist Management Module

  • /ExportWhiteList “path”: Exports the configured USB device whitelist (in .wlf format) from the template machine, including key information such as allowed device IDs and types.
  • /ImportWhiteList “path”: Imports the whitelist file into the target machine, achieving standardized configuration of device access rules.

3. Log Management Module

  • /ExportLog “path”: Exports the operation logs of the target machine for verifying the effectiveness of strategies after deployment.
  • /DeleteLog: Clears the initial logs of the target machine to avoid redundant information interfering with later audits.

III. Standardized Deployment Implementation Steps

Phase 1: Creating the Base Configuration Template

  1. Template Machine Initialization

Complete the basic configuration of Gilisoft USB Lock on one PC: set the management password, add allowed USB devices (such as specific USB drives and mobile hard disks), and configure device access permissions (read-write/read-only), etc.

  1. Export Template Files

Run commands to export password and whitelist templates to the shared server:

# Export password templateC:\USBTool\USBTool.exe /GetPW "\\Server\Share\Template\Base_PW.txt"# Export whitelist templateC:\USBTool\USBTool.exe /ExportWhiteList "\\Server\Share\Template\Base_WL.wlf"

Phase 2: Batch Deployment to Target Machines

Automate the import operation through a PowerShell script, with the following steps:

  1. Script Writing

Create a deployment script (Deploy.ps1) containing path definitions, password import, whitelist import, and log cleaning:

# Define template file path$sharePath = "\\Server\Share\Template\"$pwFile = $sharePath + "Base_PW.txt"$wlFile = $sharePath + "Base_WL.wlf"$toolPath = "C:\USBTool\USBTool.exe"# Import password& $toolPath /SetPW $pwFile# Import whitelist& $toolPath /ImportWhiteList $wlFile# Clean initial logs& $toolPath /DeleteLog
  1. Batch Execution

Push the script to all target machines using tools like PDQ Deploy and run it with administrator privileges. For small-scale deployments, the script can be manually copied to the target machines for execution.

Phase 3: Deployment Verification

  1. Random Sampling Inspection

Select 3-5 target machines, manually log in to Gilisoft USB Lock to verify the correctness of the password, and insert USB devices inside and outside the whitelist to test whether the access rules are effective.

  1. Log Auditing

Run the command on the target machine to export logs and check for abnormalities in the configuration process:

C:\USBTool\USBTool.exe /ExportLog "D:\Deploy_Check.log"

IV. Key Considerations

  1. Version Consistency

All target machines must use the same version of USBTool.exe as the template machine to avoid deployment failures due to differences in command parameters.

  1. Permission Control

The template files on the shared server must be set with strict permissions, allowing only administrators to access to prevent password file leakage.

  1. Path Unification

It is recommended to install USBTool.exe in the C:\USBTool\ directory on all devices to avoid script path adaptation issues.

  1. Error Handling

Determine the execution result through the command return code ($LASTEXITCODE), where 0 indicates success, and non-zero values require referring to the tool documentation to troubleshoot the cause.

V. Summary of Solution Advantages

The batch deployment solution based on USBTool.exe has achieved three major breakthroughs: first, efficiency improvement, reducing the deployment time of 100 devices from 3 days to 2 hours; second, strategy unification, eliminating manual configuration errors through template reuse; third, easy maintenance, as strategy updates only require modifying the template and re-running the import script.

For enterprise IT teams, this is not just a technical solution but also a practical implementation of standardized management concepts — replacing repetitive work with tool-based thinking and ensuring system security through process-oriented operations, ultimately achieving the goal of “zero errors, high efficiency, and easy maintenance” in USB device management.

Comprehensive Guide to USB Video Protection: Detailed Usage of Gilisoft Anti-Copy Software and License Rules

In today’s digital age, protecting intellectual property and sensitive video content has become critical. Whether it’s training materials, educational courses, or proprietary content, preventing unauthorized copying is a major challenge for content creators and enterprises. A user recently asked: “We want to protect a set of videos on USB drives from being copied. Which Gilisoft product can achieve this, and how many times can each license be used?”

The Necessity of USB Video Protection

With the growing popularity of digital content distribution, transferring videos via USB drives has become standard practice for many businesses and educational institutions. However, this also poses risks of unauthorized copying and sharing of content. Effective protection measures not only prevent revenue loss but also ensure that content creators’ intellectual property is respected.

Gilisoft’s USB Encryption Solutions

Gilisoft’s USB security suite is specifically designed to address such challenges. Among them, Gilisoft USB Encryption provides robust encryption for video files on USB drives, effectively blocking unauthorized copying. The software uses the Advanced Encryption Standard (AES) to ensure that only authorized users can access protected content.

Core Product Comparison and Function Analysis

Gilisoft offers three core products for USB video protection, each tailored to different scenarios:

  1. Gilisoft USB Copy Protection
    • Core Functions:
      • Anti-Copy and Device Binding: Prevents video files from being transferred to other devices via copy-paste, drag-and-drop, or other methods, forcing content to play only on authorized devices (e.g., specific computers or USB drives).
      • Cross-Platform Access Control: Supports Windows, macOS, iOS, and Android, but once content is played on a device for the first time, it locks to that device and cannot be opened elsewhere.
      • Dynamic Watermarking and Expiration Settings: Adds floating or fixed watermarks (e.g., user IDs) and sets video expiration dates (synchronized with online time servers to prevent local time tampering).
    • Use Cases:
      • Distribution of training videos by educational institutions, sharing of confidential materials by enterprises, and copyright protection for creators’ works.
      • Strict restriction of content dissemination to prevent secondary sharing.
  2. Gilisoft USB Lock
    • Core Functions:
      • Hardware-Level Encryption and Access Control: Encrypts the entire USB drive with 256-bit AES, setting passwords, expiration dates, or usage durations (e.g., total playback of 2 hours). Unauthorized users cannot read the data.
      • Data Leak Prevention: Prohibits copying files from the USB drive to other devices (e.g., phones, computers) and restricts USB port access to prevent data theft.
    • Use Cases:
      • Physical storage security for highly sensitive videos (e.g., medical records, financial data).
      • Prevention of data breaches due to lost or stolen USB drives.
  3. Gilisoft USB Encryption
    • Core Functions:
      • Partition Encryption and Flexible Management: Divides the USB drive into an encrypted zone (password-protected) and a public zone (freely readable/writable). The encrypted zone uses AES 256-bit encryption to protect video files from hacking.
      • Cross-Device Compatibility: Encrypted content can be accessed on any Windows computer without additional software, suitable for secure video transfer across multiple devices.
    • Use Cases:
      • Personal users or enterprises needing both privacy protection and convenient sharing.
      • Scenarios requiring simultaneous storage of sensitive videos and ordinary files on the same USB drive.

Usage Process and Best Practices

  1. USB Copy Protection
    • Steps:
      1. Install the software, select video files/folders to protect, and set device binding rules (e.g., bind to a specific USB or computer).
      2. Generate an encrypted package (.gcp format), which can be directly distributed or burned to a disc.
      3. Recipients must enter a password for the first playback, and the system automatically binds the device; no repeated verification is needed for subsequent plays.
    • Tips:
      • Combine dynamic watermarking to trace leakage sources (e.g., generate unique watermarks for different users).
      • When setting expiration dates, sync with online time servers to avoid loopholes from local time tampering.
  2. USB Lock
    • Steps:
      1. Insert the USB drive, run the software, and select “Encrypt Entire Drive.”
      2. Set a password, expiration date, or usage duration (e.g., “Allow playback until December 31, 2025”).
      3. After distribution, recipients must enter the password to access content, which cannot be copied to other devices.
    • Tips:
      • Enable the “Access Log” function to view the USB drive’s usage time, frequency, and device information.
      • Enterprise users can manage USB access permissions for multiple devices via batch authorization tools.
  3. USB Encryption
    • Steps:
      1. Insert the USB drive, select “Create Encrypted Partition,” and specify the partition size (e.g., 5GB).
      2. Set a password, then drag video files to the encrypted partition; the public partition can store non-sensitive files.
      3. After ejecting the drive, the encrypted partition auto-hides and requires a password for reaccess.
    • Tips:
      • Regularly back up encrypted partition data to avoid loss from accidental operations or device damage.
      • To access encrypted partitions on Mac or Linux, install the free GiliSoft USB Reader tool.

Selection Tips and FAQs

How to Choose the Right Product?

  • Priority on anti-copy: Choose USB Copy Protection (for strict control over distribution).
  • Priority on physical security: Choose USB Lock (for preventing data leaks from lost/stolen USBs).
  • Priority on flexible encryption: Choose USB Encryption (for secure sharing across multiple devices).

How to Secure Your Computer from Unauthorized USB Access on Rear Ports

Introduction

“I just found out that someone is using the USB ‘s in the back of the computer to take information off our computer. Is there a way to lock out those as well ?” One user asked me.
In today’s world, securing your computer from unauthorized data access is more important than ever. Many users overlook the rear USB ports, leaving them vulnerable to data theft. These hidden ports are often exploited by those with malicious intent to copy files from your system. If you’re concerned about protecting sensitive data from being transferred through these ports, you need a reliable solution.

Scenario
Imagine discovering that someone has been accessing your computer through the USB ports at the back, copying sensitive files without your knowledge. These ports are often not monitored and are the perfect target for anyone attempting to steal data. Without proper protection, valuable information like confidential reports, personal data, and intellectual property could easily be taken.

Why Rear USB Ports Need Protection

  • Hidden Vulnerability: Rear USB ports are typically out of sight, making them an easy target for unauthorized access.
  • Data Theft Risk: Sensitive documents, financial records, and other important files can be transferred without your knowledge.
  • Prevention of Unauthorized Data Access: You need a solution that will block data theft attempts through both front and rear USB ports.

Solution: How to Lock Rear USB Ports with Gilisoft USB Lock
Gilisoft USB Lock is a comprehensive tool that lets you easily disable both front and rear USB ports to prevent unauthorized access. This software is particularly useful in environments where securing sensitive information is crucial.

USB Port Lock With Password

Steps to Secure USB Ports Using Gilisoft USB Lock

  1. Download and Install Gilisoft USB Lock on your system.
  2. Disable Specific USB Ports: Go to the settings to block USB access to rear ports while leaving others accessible as needed.
  3. Password Protect the Application: Add a password to prevent unauthorized changes to the settings.
  4. Monitor USB Access: Restrict or monitor USB activity, ensuring no one can copy data from your system.

Bonus Solution: Gilisoft Copy Protection Toolkit Suite
For an added layer of security, you may want to consider the Gilisoft Copy Protection Toolkit Suite. This all-in-one solution provides advanced features to safeguard your data, including protecting files on USB drives from unauthorized copying. The suite also offers encryption and other protection mechanisms, making it a perfect complement to your overall USB security strategy.

By using Gilisoft USB Lock in combination with the USB Copy Protection Toolkit Suite, you can ensure that your sensitive data remains protected, preventing any unauthorized access via the rear USB ports or external drives.

Comprehensive Data Integrity and Security in Digital Forensics with Gilisoft USB Lock

In digital forensics, maintaining data integrity is crucial when acquiring and analyzing evidence. Essential requirements for forensically sound data handling include:

  • Data Integrity: Original data must remain unchanged throughout the forensic process, ensuring it can serve as admissible legal evidence.
  • Read-Only Mode: Forensic data acquisition must occur in a read-only mode to prevent any modifications to the original storage device.
  • Repeatability and Accuracy: Data must remain consistent and unaltered across multiple readings, ensuring no data is lost or modified.
  • Event Logging: All actions during data acquisition must be recorded to allow for full traceability and integrity verification.

The Technology Behind Gilisoft USB Lock’s Computer Forensic Mode

Gilisoft USB Lock offers a unique Computer Forensic Mode, designed specifically for digital forensics. This mode strictly operates in a read-only environment, blocking any write attempts to a USB device, thus preserving data in its original state. Key principles and benefits of this mode include:

  • Low-Level Access Control: By enforcing controls within the OS kernel or through low-level drivers, Computer Forensic Mode ensures data remains read-only at the hardware level.
  • Automatic Write Protection: The mode disables any automatic installations, log creation, or system behaviors that might alter the original data.
  • Real-Time Verification: Users can monitor and validate data integrity in real time, confirming that the data remains unmodified throughout the forensic process.

Additional Core Features of Gilisoft USB Lock

Beyond Computer Forensic Mode, Gilisoft USB Lock offers a suite of data protection and security management tools, ideal for safeguarding sensitive data and preventing unauthorized access:

  • USB Port Locking: Securely lock all USB ports on the computer to prevent unauthorized USB devices from accessing the system, thereby enhancing physical data security.
  • Device Whitelisting: Users can configure a whitelist of authorized USB devices, allowing only specific devices access while blocking all others.
  • Data Encryption and Decryption: Critical data can be encrypted to prevent unauthorized access, ensuring that only authorized users can decrypt and view sensitive information.
  • Application Locking: Administrators can restrict access to specific applications, preventing unauthorized users from using software that might expose sensitive data.
  • Password Protection and Remote Unlock: Gilisoft USB Lock supports password protection and remote unlocking, providing multiple layers of security for devices and data.
USB Port Lock With Password

Why Gilisoft USB Lock is the Perfect Solution for Data Protection and Forensic Needs

With its versatile feature set, including Computer Forensic Mode, Gilisoft USB Lock is an ideal choice for enterprises and individuals alike. It offers a full spectrum of data protection and forensic tools tailored to meet the needs of high-security environments. By preventing data breaches and unauthorized access, Gilisoft USB Lock serves as a comprehensive solution for securing sensitive information and supporting forensic investigations.