Responding to the clueless

Some people do not understand what we mean by computer security, so let's put it this way ... would it be a good idea if on a bill board in front of your home you posted all your bank account numbers & your Mother's Maiden Name & your PIN # & invitepeople to help themselves?

No, you do not want to give it away that way?
Well that is exactly what you are doing over the internet when you transmit via plain text unencrypted information of that nature.

This example gets their attention to discuss elements of what makes for good security of information they might like to keep confidential.