You have a completely separate life that no other Kindred know about. It may be your mortal family that you have turned into ghouls, or a YouTube channel that you use to talk in metaphor about your frustrations with Kindred society. If discovered, this could risk other vampires accusing you of breaching the Masquerade (if Camarilla), consorting with humanity instead of being a superior vampire (if Sabbat), or just overall paranoia and suspicion on why you’re keeping such deep secrets.