Since Google+ is now defunct, specifically per Google's own message when you navigate there, why is BitDefender's Digital Identity Protection module flagging it as somewhere we need to visit to check for "impersonation attempts"? Message I received per Digital Identity Protection:
Google+
We detected a Google+ Profile with similar data. It could be your profile, somebody with whom you share similarities or (worst case scenario) somebody impersonating you
WHAT SHOULD I DO (1)
Review the Google+ Profile
If it's not your own profile, evaluate if it's somebody pretending to be you. Look for both clear similarities and clear differences
It is an impersonation attempt
It is my profile
It is something else