Bump Keys

On my usual nightly searching and youtub’ing, I came across this:

Now to say I was shocked is an understatement, not so much that people can do this because as we all know there are ways around anything. No, I was more shocked that I wasn’t aware of the simplicity of this method. Further googling led me to a few news reports in the US regarding this phenomenon. Needless to say that today I am looking into how to defend against this kind of attack.