A "Nest" is a smart doorbell security system with cameras. A "white hat" hacker is one with no nefarious intent who only looks for security flaws. Andy Gregg, a realtor in Arizona, was in his backyard one day when his Nest started talking to him! The voice came from a white hat hacker from Canada who very politely discussed how Gregg should change his password for better security.
The hacker couldn't see images through the camera and didn't know where Gregg lived, he said. But he told Gregg such information wouldn't be hard to find.
The man then recited a password Gregg had used for multiple websites.
Everyone ready? Let's go change some passwords! -via Boing Boing