The exploit is pretty simple – since key information is not protected in Onity locks, Brocious’ tool is able to read the lock’s memory, obtain key information and unlock the door.

Bad news: With less than $50 of off-the-shelf hardware and a little bit of programming, it's possible for a hacker to gain instant, untraceable access to millions of key card-protected hotel rooms.

Police said the hotel-room hack, which works against an estimated 4 million keycard locks made by Onity, was used in a spree of crimes in several Arizona cities, including Phoenix, Mesa ...

The lock-picking tool—often referred to on the Internet as the “Onity hack”—takes less than 20 minutes to build, costs less than $40, and everything you need can be found at your ...

Onity also offered to replace parts of each lock to permanently disable the security flaw, but said its clients would have to foot the bill. Last fall, the hacking device was miniaturized to fit ...