THIS IS FOR SURE A SCAM!
I called Apple direct (the REAL Apple customer service). THIS IS A SCAM, THIS IS NOT APPLE CALLING. Apple explained they don't have the capability to know if any Apple devices are having problems, be it software, hacking, etc. He explained further, when someone with an Apple device is having troubles, the owner of said device will contact Apple, not the other way around.
DONT ANSWER THIS CALL, doing so just opens up the door to more calls from these scum people or they sell your number and expect double + scamers to call you.
they robo called me- said I had suspicious activity on my Apple device - (when guy answered with heavy Indian accent) I asked, where he was calling from - he said Sacramento - he asked for my phone # - I asked for his callback number and he hung up on me-
calls me everyday and tells me not to use my iphone until i talk to them, finally decided to connect to someone and it was some droning indian voice that insisted i called him so i was very rude and he told me to go to the apple store to get it fixed