Got a call @ 7:15 pm on 23 April 14. Couldn't really understand the computer generated voice, something about my account had been locked, press 1 to reactivate and 2 to leave. I just hung up thinking this must be a scam. After reading all the posts, I am convinced this truly a scam.
Didn't answer because I didn't know the number. Left some message about call this number now and you'll be connected with our security department. This at 11 pm!!! And on my cell phone, a number I haven't given to anyone.