Robocall informing me that my "security card (?) has been locked.  For more information, please press 1."  

I hung up and dialled *69 for the caller's number, then called the number (above).  A message machine answered, saying that "extension 210" is unavailable and that I should leave a message or callback number.

I have no security card other than my credit cards and my bank would call me personally if my card were to be locked.  I left no information with the caller.