Most of us unlock our phones dozens of times a day with a quick glance or tap of a fingerprint, and usually that's perfectly safe. But there is an important ...

Biometric locks like face recognition are convenient to set up—but because of a legal loophole, law enforcement can bypass them more easily than a traditional passcode.

Although the iPhone does allow you to setup a lockscreen passcode, it doesn’t give much flexibility in choosing one, allowing you to set only a four-digit passcode. If that doesn’t pass your security ...