How to quickly disable Touch ID and Face ID when you need extra securityCan you rapidly force your iPhone to require your passcode or password to unlock? Absolutely — with iOS 11.
Biometrics are an incredible convenience that lets you unlock your iPhone with your fingerprint. On iPhone 5s through iPhones 8, Touch ID lets you authenticate with your fingerprint. On iPhone X, Face ID lets you authenticate at a glance. But there will come times when you need security more than convenience. For example, when you're traveling through a sketchy area, crossing a border into a region you don't trust, or approached by people or agencies that may not respect your right to privacy. Previously, you had to reboot your iPhone to quickly force it to require your passcode or password for unlock. With iOS 11, though, there's an even quicker way. Here's how!
Note: This feature is currently iPhone only. Hopefully, Apple will bring it to iPad as well.
How to quickly turn off Touch ID and Face ID on your iPhone
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How to quickly disable Touch ID and Face ID when you need extra security
