I’ve got the same problem, though I just received a message from Microsoft that said my account has been accessed by someone in Russia. Who knows what’s really going on.
Was the email addressed personally to you?
I get 2-3 per day all claiming to be from Microsoft and identifying the source as Moscow.
On a PC, if you hover over the hyperlink "Report THE USER" you'll see the linked send to address at the bottom left corner of the screen. It's always some bogus email, typically a gmail account.
Sometimes you can click on FORWARD and on the next screen SHOW ENTIRE MESSAGE and it may reveal the true phony address.
Everything looks like Microsoft, but isn't .
Here's the fake.......
