Thanks, debs -- that one is a classic, and they don't always use pop-ups, either, they often phone people directly.  For non-technical people, the patter can be extremely convincing. 

I work in high tech and received one of those calls a few years back.  When I asked for his credentials, he hung up.

You showed courage in sharing your story, took the right actions to protect your finances and your identity, and I hope that it helps protect others.