Just received this,i have nothing to do with Apple so just a warning.
We have detected an unauthorized sign in on your Apple ID (my email showing)
As a part of our security measures your Apple ID was locked.
While your Apple ID is locked, you cannot use your Apple software, also access to your iCloud is limited.
If you want to unlock your Apple ID, please click here.
This is an automated message, please do not reply.
Thank you.
Apple Support
We have detected an unauthorized sign in on your Apple ID (my email showing)
As a part of our security measures your Apple ID was locked.
While your Apple ID is locked, you cannot use your Apple software, also access to your iCloud is limited.
If you want to unlock your Apple ID, please click here.
This is an automated message, please do not reply.
Thank you.
Apple Support