An unknown email address is displayed during password reset. Have I been hacked?

Question

If you see an unknown email address when attempting to get a password reset (either cPanel or Email), then you might think: "Oh no!, I've been hacked!"

Answer

Don't panic. You have not been hacked. This is actually by design to prevent hackers from obtaining valid information. If you review our documentation here: How To Reset A cPanel Sub Account Password

You'll notice under the Important section: 

If you do not specify a contact email address, the system displays a fake email 
address when you attempt to reset your password. This helps protect users' credentials 
on your account. This email address appears as a hint in the Contact Email Address 
text box on the cPanel Login interface.

However, because you have not set up a valid email address for retrieving a password reset link, you will need to contact the host/provider.