You may not rely on lock bits at all. Rather consider do some thing to fool the hecker.
But honestly speaking, in my opinion Peter conrad him self was looking for some way to break someones code :). By the way, it was nice way to get the info. If he would have asked someone that he need some tool to that he can use breaking someone secured code, no one would have given him. Am I right Peter?

Goodluck hecking...

Rauf