USB storage devices have always been the best method of data sharing because of their removable and rewritable features.They are often used for the same purposes for which floppy disks or CDs were once used, but USB storage devices are smaller, faster, have thousands of times more capacity, and are more durable and reliable because they have no moving parts. With the increasing use of such portable USB storage devices, it has also significantly increased the threats to companies’ data security. USB devices and other portable storage devices are one of the top causes for security incidents with millions of dollars in losses for businesses. As per the CoSoSys – one of the famous brand in Mac security, ” The need of using a device control solution and controlling the use of devices in corporate environments has become nowadays a must in order to keep up with the latest security challenges”. Most of the companies deploy the Endpoint Protector software for Mac OS X by CoSoSys to control the use of USB, CD/DVD, card readers, etc.You can disable or block the USB access in any system using Endpoint Protector in order to prevent data theft. But not everyone would like to buy the license for this software, so for them there is a free and reliable solution to block or disable USB storage devices on mac by removing or unloading the built-in USB storage device driver extension in OS X. Use the following instructions on your Mac to block or disable USB mass storage device input/output support such as USB Flash drives and external USB hard drives .

Block or Disable USB storage Devices on Mac

Note: The following method or troubleshooting will not affect the use of USB Keyboard, Mouse or printer as this is only applicable to USB storage devices on Mac.

Suggestion: Keep backup before removing system file from Mac.

Method 1

Block or Disable USB Port on Mac OS X