2 It Could Be Even More Secure
If you’re even a casual movie watcher, you may have seen a scene when someone unlocks a door with multiple biometric systems, like an iris scan and a fingerprint. These systems exist, and there’s no reason why they couldn’t be brought to a smartphone.
Granted, using multiple authentication systems just to unlock your device would be inconvenient — which is exactly the problem Face ID was meant to deal with. But that option could still be there for the users who want or need it.
What we’re talking about is ultra-secure, multi-authentication for extremely sensitive data or apps. Think of your banking apps or password managers — things that you’d want an extra layer of security to be protecting. With multiple forms of biometric security, this could be a possibility.