Hackers have found a way to take advantage of hotel key cards. Even though they're working on it, I can't imagine they've solved the problem in millions of hotels that fast.
"That security flaw was first publicly demonstrated by Cody Brocious, a 24-year-old software developer for Mozilla, at the Black Hat hacker conference in July. Brocious reverse-engineered Onity’s locks and discovered he could spoof the “portable programmer” device meant to be used for designating master keys and opening locks whose batteries had died.
On stage at Black Hat, Brocious showed it was possible to insert the plug of a small device he built with less than $50 in parts into the port at the bottom of any Onity keycard lock, read the digital key that provides access to the opening mechanism of the lock, and open it instantaneously.
In a statement sent to me, a White Lodging spokesperson says the company became aware of the vulnerability in its Onity locks in August, based on reading one of the stories I wrote about Brocious’s lock-hacking technique over the summer. But White Lodging says Onity only implemented a fix for that flaw in its locks after the September break-ins at the Houston Hyatt, around two months after I first alerted Onity to Brocious’s work."
http://www.forbes.com/sites/andygree...This%20Morning