Trusting Radio Activated Things

A few days ago, I was jumping into my car and used the unlock button on my car keys when a colleague of mine noticed that a nearby garage door had opened. I thought nothing of it, he thought that it was freaky, so to prove to him it had nothing to do with me I pressed the unlock button again and the garage door closed!

I always thought that this was only possible with older devices, I always trusted that with today’s level of encryption you would not be able to get such a thing happening. I wonder if that garage door’s opener would unlock my car. What a scary world we live in, there are many things that are implemented poorly and yet we rely on it greatly.