Between jewelry, passports, laptops, and even tablets, a lot of us carry some very expensive things when we travel. And we expect the hotel we're staying at to do all they reasonably can to keep us and our belongings safe. But according to a Forbes report, hotel doors with keycard entry offer virtually no security at all — they can be easily hacked with as little as $50 worth of equipment.

According to 24-year old security expert Cody Brocious, if your hotel room door's keycard lock has a DC power port, it can be broken in to with inexpensive software and other hacking tools. And to prove it, Brocious has created a device capable of breaking into as many as 5,000,000 hotel rooms worldwide. The device works by spoofing the all-access cards used by hotel staff. According to Brocious, while every locked hotel room door requires its own access code to open, that access code is programmed into the door itself. The hacking tool can read the code, and then use it moments later to unlock the door.

Brocious will talk more about his hacking tool (and, more broadly, hotel room security) at the Black Hat USA security conference on July 24.

[Image credit: Open keycard door via Shutterstock]

This article was written by Fox Van Allen and originally appeared on Tecca

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