Security & ScamsProtocol Security
Why Car Keys Never Repeat Themselves
Each press of your fob sends a code that will never work again
Every press of your car key shouts an unlock code into the air. So why can't someone nearby just copy it?
You'll find out
- Why a copied code used to work
- How a key and a car count together
- The trick that beat rolling codes
Why it matters
Car keys, garage remotes and gates all shout codes into the air; this is why most can't be copied and replayed.
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