This happened to my husband. He'd never seen this before. He panicked thinking it was real and called the number. When I came into the situation whomever he called appeared to have taken control of our computer? They were trying to sell him a firewall program from $200 and up...I interrupted the call and informed my husband to end the call that he was being scammed. Then they ask to talk to me, I told the guy to ____ basically, and hung up. We shut everything down and rebooted. All seems okay...but I'm concerned...should I be? Thanks Cindy