Don't leave your office computer on and unattended

As reported by Vice's Motherboard column:

Next time you go out for lunch and leave your computer unattended at the office, be careful. A new tool makes it almost trivial for criminals to log onto websites as if they were you... the new $5 tool called PoisonTap... can even break into password-protected computers, as long as there’s a browser open in the background...

“It’s entirely automated. You plug it in, you leave it there for a minute, then you pull it out and you walk away,” Kamkar told Motherboard in a phone call. “You don’t even need to know how to do anything.”

Not all hope is lost though. To prevent someone from hijacking your accounts with PoisonTap, the best solution is to “fill your USB ports with cement,” Kamkar says laughing.