Whoever robbed Janet Wolf’s hotel room did his work discreetly.You should assume that your lock is insecure. When you are in the room you should engage the deadbolt and the door chain/bar. When you leave, you should take valuables like computers and jewelry, leaving them in the car trunk.
When Wolf returned to the Hyatt in Houston’s Galleria district last September and found her Toshiba laptop stolen, there was no sign of a forced door or a picked lock. Suspicions about the housekeeping staff were soon ruled out, too—-Wolf says the hotel management used a device to read the memory of the keycard lock and told her that none of the maids’ keys had been used while she was away.
Two days after the break-in, a letter from hotel management confirmed the answer: The room’s lock hadn’t been picked, and hadn’t been opened with any key. Instead, it had been hacked with a digital tool that effortlessly triggered its opening mechanism in seconds. The burglary, one of a string of similar thefts that hit the Hyatt in September, was a real-world case of a theoretical intrusion technique researchers had warned about months earlier—one that may still be effective on hundreds of thousands or millions of locks protecting hotel rooms around the world.
The manufacturer of these locks is looking to get some stormy weather. Not only was there no thought given to the security of the devices, but the "fix" offered their hotel customers is to replace all the locks.