Invisible hand of the free market my friend. If a bank lets a thief get away with an unencrypted harddrive full of bitcoins who is going to ever use them again

Invisible hand of the free market my friend. If a bank lets a thief get away with an unencrypted harddrive full of bitcoins who is going to ever use them again?. Bitcoin is a strange concept, I am not convinced it will take off but the potential is amazing.