Apologies if this has already been asked but i couldn't find a clear cut answer. Please keep in my mind i'm not very technical but am learning.
So let's take scenario where i have a subdomain "sub.example.com" and have issued a certificate for it. Now what would be the inherent risk if let's say an IP address x.y.x.y that was not associated with me is utilizing my certificate without my approval or knowledge.
Would this scenario even be possible if the other party does not have my private key? or do private keys not matter when installing a certificate? or, Does this not matter at all since a warning will be displayed showing that the certificate/website is misconfigured and is using the wrong certificate?