BadUSB: Reprogrammed USB firmware can impersonate devices
Black Hat · Talk · 45 min · 2014 · YouTube title: BadUSB - On Accessories that Turn Evil by Karsten Nohl + Jakob Lell
Why it's here
HN uses it as the standard reference for why USB devices are dangerous beyond ordinary viruses.
What it covers
Karsten Nohl and Jakob Lell present BadUSB at Black Hat 2014, showing that USB controller firmware can be reprogrammed to impersonate other device types. They demonstrate system compromise and a self-replicating USB threat that current defenses cannot detect.