I got a pop-up when I tried to log-in this morning that my account's log-in priviliges had been suspended for suspicious activity and I should respond to an email I would get on the issue. Confirming that this popup did come from the client and the email was from a Square address, I proceeded to click the link and follow a prompt to update my password.

Curios if anyone else has had this or why it happened. I do not use any add-ons and can think of nothing that would be "suspicious activity" requiring a log-in block. :\