"Hackers Designed a 'Master Key' to Unlock Millions of Hotel Room Doors"

Security researchers from F-Secure discovered a critical flaw in the design of VingCard’s Vision software used for electronic keys, which would allow millions of hotel rooms to be hacked. An attack developed by researchers, Tomi Tuominen and Timo Hirvonen, exploits the flaw to create a master key that could be used to unlock any room in a hotel building. This article continues to discuss the attack designed by researchers, other ways in which the Vision software could be exploited, and VingCard’s response to the attack. 

Gizmodo reports "Hackers Designed a 'Master Key' to Unlock Millions of Hotel Room Doors"