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USB Block is a safe tool to prevent data leakage.

  • A authorization prompt will be displayed when a new USB device is detected.
  • Without Your Password, Non-trusted USB devices will be automatically blocked when they are inserted.
  • There will be a notification displayed on the screen when a device is blocked.
  • Only White-list USB devices can be inserted without authorization prompt.

What's New

Version 2.3:
  • Bug fixed - Sometimes the password authorization feature triggers the Keychain prompt display which causes password protection to fail.


  • OS X 10.8 or later

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Current Version (2.x)


Downloads 26
Version Downloads 26
License Updater
Date 15 Sep 2017
Platform Intel 64 / OS X
Price $5.99
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