Theoretically, the biometric data could be passed through a one way hash. So when anybody else goes to the bank and asks for the facial recognition database, it’s a load of seemingly random gibberish.
I’m sorry, we can’t tell you what Mr X looks like, until he logs in.
Unfortunately, a biometric, once compromised, is irrevocably compromised.
Your retina scan has expired. Please reauthenticate using a different set of eyes.
