How To Prevent Files From Being Copied To USB Devices 

With AccessPatrol’s USB drive file transfer blocker you can prevent files from being transferred to a USB flash drive based on filename, extension, or removable device type.

AccessPatrol is a USB locker tool that prevents data theft via USB ports by restricting removable storage access and limiting the file types that can be copied to removable disks.

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mitsubishi electric
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and many more

AccessPatrol Block File Transfer Whitelist

Block File Transfers to Portable Storage Devices

  • Prevent copying files that are high-risk based on their filename, keywords in the filename, or file extension
  • Restrict file transfers to external storage devices
  • Manage custom file blocking policies for each department and endpoint device
  • Enable the Allowed List to limit data transfers to storage devices to a set list of filetypes and filename keywords

Why Use a USB blocker?

  • USB Security: Enforce the exclusive use of authorized USB drives. Combine AccessPatrol’s software-based policies with existing administrative safeguards to prevent employees from using personal USB drives.
  • Prevent Data Breaches: A flash drive is portable and easy to hide. AccessPatrol’s technical safeguards stop insider threats from transferring sensitive data to all forms of removable media.
AccessPatrol peripheral device permissions mockup block usb
A 32 gigabyte USB flash drive sitting on top of a computer keyboard

The Types of Devices You Can Control With AccessPatrol

As part of a multi-layered data loss prevention strategy you need to protect against any storage devices and peripherals that are capable of transmitting data such as a USB drive, Bluetooth, SD/MM cards, and Infrared ports.

AccessPatrol allows you to apply access rules for multiple classes of removable devices to prevent data loss and other security threats.

Click here for a full list of the devices you can control with AccessPatrol


AccessPatrol’s USB Drive Device Permission Settings

AccessPatrol includes various permission settings that a system administrator can use to improve data security without the need to use administrative templates in the local group policy editor.

  • Full Access: The computer or user with this access permission has read and write access to the specified removable device that is connected to the computer.
  • Read Only: USB copy protection will ensure that the user will not be able to copy any information to the specified storage devices; they will only have read access.
  • No Access: AccessPatrol will prevent the users/PC from copying files to the storage devices and restrict access
Access Patrol

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AccessPatrol’s USB Control Features

Block USB

Block USB

One click to block USB portable storage devices 

Block External Devices

Peripheral Control

Easily block DVDs, iPods, external hard drives and more

Device Permissions

Device Permissions

Set full access, read only or no access on storage devices

Allowed List

Allowed List

Allow specific trusted peripheral devices to be used


USB Activity Reports

Report on devices accessed or blocked on your network

Track File Transfers

Log USB File Transfer

Monitor files that are copied to USB storage devices

Deivce Access Code

Access Code Generator

Provide temporary access to peripheral devices

Email Alert

Email Alerts

Get alerts of unauthorized file transfers and device use

Email Report

Email Reports

Schedule device reports directly to your administrator's inbox

Block Phones

Block Phones

Prevent users from connecting phones to company computers

Block Files

Block File Transfers

Prevent files from being transferred to portable storage


Stealth Mode

AccessPatrol can run silently in the background or alert users

Internet Off

Centralized Console

Manage all your users from the
centralized console with Active
Directory import or syncing

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Platform Security

Protect your CurrentWare console
with 2FA, passwords, privilege
management, and more

Internet Off

Offsite Management

Extend onsite Internet usage
policies to laptops running outside
the corporate network

Internet Off

SQL Server Supported

Database scaled for enterprise and
large business operations using
Microsoft SQL Server


Try AccessPatrol for Free

Fully functional. Easy to use. Install in minutes.