With the new version of iOS set to come out next month, iOS 11 will now have a “panic button”. Starting with iOS 11, if you rapidly press your power button five times, it will bring up a prompt that will allow you to quickly call for emergency services or to let someone see your emergency medical information if you have set it up in the Health app on your phone.
This feature is also being called “the cop button” because once you trigger it, it will temporarily disable the fingerprint sensor on your phone so you’ll need to enter your passcode to unlock it. After all, law enforcement can make you use your fingerprint to unlock your phone, but they can’t force you to tell them your passcode.
You can disable this feature if you choose by going to Settings and Emergency SOS on your phone.