It's taken me years, but I've finally trained my Mom to "look for the lock" whenever she has to type her password or credit card in anywhere. I consider that a win. Trying to get her to understand more than "lock=safe, no lock=unsafe" is incredibly difficult that will take many more years. Like it or not, since DV has a lock, that's what the standard is for what's safe to people who don't understand there's multiple levels of security in computers.