Cody Brocious — a Mozilla dev and security researcher — presented a paper on a vulnerability in hotel-door locks last month at Black Hat. Many electronic hotel door-locks made by Onity have a small DC power-port that also supplies data beneath them. Brocious showed that if he plugs an Arduino into these locks, reads out
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HOWTO open an electronic hotel-room lock without a key
HOWTO open an electronic hotel-room lock without a key
