Scam? Call "from AT&T" asking for SS#
I just got a call from a 1-800 number ending in 8804. It was a recorded message saying that my AT&T account had been flagged for security reasons, and to give the last four numbers of the social security of the account holder "after the beep" in order to avoid an interruption in service. It sounded very suspicious to me, so I hung up. It's not legit, is it?