How would it benefit the iPhone Users?
In current scenario, the cops can ask you to unlock your phone, locked by using fingerprint lock method. But if you are going to set a PassPhrase on your device, they couldn’t ask you to unlock your device. It is because the laws suggest a cop can’t ask you to unlock your cell using PassPhrase.
How would it work?
On the Twitter account @alt_kia has pointed out the method of using this method to lock your device while the cops are around. You would need to press the power button rapidly 5 times. It will lock the TouchID and open a second screen. Here, now user can only unlock the device using PassPhrase.
It certainly is going to be an awesome feature to use for privacy and security purpose. You would be able to keep the cops away from getting inside your phone to compromise your security. Neither your friends would be able to know what’s inside your device.