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Berlin-based researchers Karsten Nohl and Jakob Lell demonstrated how any USB device could be used to infect a computer without the user's knowledge.
The duo said there is no practical way to defend against the vulnerability.
This is NOT auto-run malware, it operates at the firmware level, spoofing different devices during boot (e.g. a fake keyboard that sends input), overwriting the BIOS, and installing a rootkit.