August 21st 2017
By Mike Flaminio
Apple is adding an easy way to quickly disable Touch ID in iOS 11. A new setting, designed to automate emergency services calls, lets iPhone users tap the power button quickly five times to call 911. This doesn't automatically dial the emergency services by default, but it brings up the option to and also temporarily disables Touch ID until you enter a passcode.
We'll have to see if this makes it to the final release, but I like this feature. Currently TouchID can become disabled after too many failed attempts, if the phone as been restarted, or not unlocked for an extended period of time. This feature will allow owners to lock the device on command. Once liked, it would seem the device's data will be secured.