Hackers build 'master key' that unlocks MILLIONS of hotel room doors

While you might think that your hotel room is safe, a worrying study has revealed just how easy it is for hackers to open your room door.



In the study, researchers from F-Secure were able to develop a ‘master key’ that unlocks millions of hotel room doors in thousands of hotels around the world - including those run by well-known chains.



Tomi Tuominen, who worked on the study, said: “You can imagine what a malicious person could do with the power to enter any hotel room, with a master key created basically out of thin air.”



To create a master key, an attacker needs to get access to any electronic key at the target hotel - including those that aren’t currently active.