Android Central: Your privacy, your fingerprints and the fifth amendment by Jerry Hildenbrand:
You can be forced to provide your fingerprint to access the data on your phone. But you don’t have to make it easy.
Being able to unlock your phone with your fingerprints is a really good thing. It’s not the most secure method you can use, and there are issues about having only one set of fingerprints if you ever need to change your login credentials, but the convenience factor means more people will keep their phones locked when they’re not using them. That means your privacy is protected, as well as the privacy of everyone in your contacts or people you’re networked with through social media when and if someone else gets their hands on your phone. We all should thank Motorola for trying it, and Samsung and Apple for making it good. Biometrics used to verify identity isn’t exactly new, but getting everything working on a tiny pocket computer surely wasn’t easy. Be prepared for iris-scanning (we’ve already seen it in action) in the next few years.