iOS 11 has a feature to temporarily disable Touch ID
On 08&#x2F;05&#x2F;17 I was kidnapped at gun point and at one point forced to turn over my iPhone and on two occasions had to provide the gunman my passcode.<p>I learned about tapping the power button 5x&#x27;s but still don&#x27;t know what would have occurred and if such a function would have endangered by life (I believe it triggers a emergency services call, but that could have tipped off the gunman if he heard an voice asking &quot;911, what&#x27;s your emergency?&quot; From the phone).  So I believe the following would have been useful: an alternate passcode that would have unknowingly triggered my location and activated the mic to emergency services without the gunman being aware.