not necessarily, if you use several sequential fingerprints in a certain order, and have a hard lockout after X failures. My phone knows 6 of my fingerprints already; shouldn't be hard to get that additional level of "something you know" in addition to "something you are".
I wonder why someone would downvote this without reply? It's a perfectly reasonable suggestion, would be trivial to implement, and would be both a password and a biometric. That's two-factor authentication.
with Apple's rumored removal of a separate home button then multitouch unlock / swipe unlock can become a thing. Then how do you prove the user enabled the feature? With one finger recognition they can just compel you to try each finger and it should work.
Still manufacturers need to add distress recognition. use the wrong finger and it dumps all of them requiring pin only
