We don't send our paper mail by post card for all to see do we? We receive letters from banks, doctors, all sorts of institutions and can hope that within its envelope that letter is reasonably secure. How good it would it be if electronic communications could have some security too?
Phising attacks would be significantly reduced if organisations like banks can send digitally signed mail and users understand what this means. We all know about the little padlock symbol in our web browsers – now add it to email too!