Who called from 4163608879

I got a call from this number claiming to be CRA and asked some sensitive information. She identified herself as Anita Williams and gave me a reference number and an ID number for CRA.

I called CRA to check if they called and they had no idea! Next thing I know, my MasterCard was compromised. Lesson learnt! :(

Received a call from this number today.  Did not pick up and they did not leave a message.  Tried to call it back but it said the number was not assigned.

Called, but I didn't answer it. No message left

Have had several calls from this number to my cell.  Doesn't leave message when I call back, call doesn't go through.

Have gotten several calls from this number and 416-360-8654.  They are identifying themselves as being from Windows trying to warn me that there are problems.  Bottom line is they are a big time scam and want remote access to my computer so they can steal information.  How the hell are we supposed to get them to stop?  The last time they called I told them I had a Mac and to take my number of their list....yeah, like that's gonna happen.