Potential scam
I received an email supposedly from Apple indicating that my password had been changed from another country and a different browser than the one I use. It said I was locked out of my account until I responded to the email. I logged into the Apple store and my password worked and the money I had in the account was still there. To be on the safe side, I changed my password through the Apple online process. I assume this was a scam.
iPhone 6s, iOS 12