Can’t someone just park by my house and capture my garage door opener’s radio signal and replay it?

Question

I guess what I’m asking is if garage remotes are secure.

In: 10

Answer 1

Yes, they can. But that doesn’t mean your garage will open.

Since decades rolling codes are used, which change all the time.
Depending on the exact system, certain vulnerabilities exist, but it is not as simple as replaying the same signal.