You’re missing the most obvious thing the OP might have meant.
I took it to mean the case when the public-private key pair has been compromised. Systems been hacked, someone looked over his shoulder when authorising himself etc etc.
So OP is just asking what happens if someone steals my private key, and I need to tell the rest of the world my Identity cannot be verified using this key pair anymore.
lmao maybe OP meant so invisible as to be transparent. "clear"ly