Just received an email supposedly from Apple Support but when I expand the email address, it's from [undisclosed email]. A summary of the message: "If you do not update your data within 48 hours, we will disable your account. Click the link below." Does anyone recognise that address? I assume it's a scam.
Apple would only send email from domains recognisable as Apple.
Hover over (don't click) the link and see where it would take you - probably to a perfect copy of the Apple sign-in page so you can give him/her your user name and password.