I was surprised to learn this fact the other day. I had never really thought about software coding security in basic building blocks sort of way. There are only two, yes two, fundamental security mechanisms with regards to software. Can you name them?

Think least common denominator of security, choose a few mechanisms and break them down into what components they are created upon... that should put you on the right path. I'll post the answer in another day or two. The comments are open!