RFID (Radio Frequency Identification) door lock for keyless entry to a hotel room and other areas of the hotel is becoming more popular in hotels across the world.

无线电频率识别（RFID）门锁： 被用于酒店房间或者酒店各个区域，这种趋势无论在酒店业还是在全世界都逐渐流行。

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The inconspicuous lock hacking device is an adaption of one demonstrated at the Black Hat security conference in July by Cody Brocious, a hacker and software developer for Mozilla, who discovered and exploited a vulnerability in Onity locks, a cheap and popular hotel room lock that the company says are used on at least four million hotel rooms worldwide.

FORBES: Hackers Crack Hotel Room Locks With A Tool Disguised As A Dry Erase Marker