Wednesday, September 05, 2018

USB vulnerabilities



If you plug a device backward into a USB port on my HP Envy (like a Sandisk reader) you get a “power surge fault”.  It’s a little bit tricky because the plug on the cord is hard to see.

The port won’t work again in Windows 10 until you restart the computer.
  
But the idea is significant for another reason.  In extreme security-sensitive environments, it is possible to hack computers across air gaps through USB ports, I am told.   It may be that Microsoft’s requiring a restart is simply a security protection against this possibility.

No comments: