Don’t Panic, But All USB Devices Have a Massive Security Problem: "USB devices are apparently more dangerous than we’ve ever imagined. This isn’t about malware that uses the AutoPlay mechanism in Windows — this time, it’s a fundamental design flaw in USB itself.
Now you really shouldn’t pick up and use suspicious USB flash drives you find lying around. Even if you ensured they were free of malicious software, they could have malicious firmware."
'via Blog this'
