I did not change my shipping or billing address

I also received an email last night from appleid@id.apple.com saying that my billing info was changed, but I hadn't changed anything. So I immediately changed my password, and I spoke with an Apple rep this morning for a while trying to figure out what happened. We ultimately figured out that it could be that because the credit card that I had on file had recently expired, it automatically changed things in the system and sent me an email. That's the only thing we could think of, because I have two-factor authentication set up, and I didn't get any notifications that there was an attempt to log in.

They did have me check to be sure that the email hadn't come from a phishing site, and it hadn't, but I was stupid and clicked on the link in that email last night. Thankfully, it was a legitimate email with a link to the actual Apple ID site, but that could have ended very wrong. I won't be making that mistake again. The best advice that I can offer to anyone else is change your password immediately by typing in the Apple ID website address yourself (not following any links), and set up two-factor authentication if you hadn't already.

I too this morning received an email from them saying my billing information had changed but nothing was but i redid password anyways and added the two step authentication, must just be something with their systems changing something in the software and gave false emails