If you are planning to tap the control center of your phone simultaneously then your iPhone is in trouble. It will get freeze, so just dot do it.
Bugs are always bad for any software, either they are small annoyance or downright dangerous. Recently in IOS 10.3.1 a very hard to reproduce bug was found. Bug freezes the iPhone.
On April 24, an Italian website broke the story based on YouTube video demonstrating about bug. The reproducible bug freezes the iPhone for few seconds and then comes back to normal. The bug itself is harmless and only triggers when user simultaneously press three fingers on three different control centers. The bug works on IOS 10.2 and above updates till IOS 10.3.2 and beta 4.
The freeze happen under different conditions. Different users have experienced different situations. Some says they pressed AirPlay, NightShift and Camera. AirPlay, NightShift and Calculator or AirPlay, NightSift and Timer. It freezes for few seconds and then get back to normal. It may also reload the system. If the system reloads then user don’t have to enter the password of their iPhone rather use TouchID.
User need to make sure how to fix the frozen phone if it doesn’t respire. If this happens then simply hard reset the device by holding the Sleep/Wake and Home buttons simultaneously for 10 seconds, and your iPhone will be good as new.
If you want to avoid this bug altogether, enabling “Zoom” toggle in Settings -> General -> Accessibility -> Zoom prevents the freeze-up from happening. This is because the Zoom feature relies on a three-finger double-tap gesture, which apparently supersedes the bug since iOS is now paying attention to three-finger taps.
The bug affected all models of iPhone 5s and onwards. Some users experienced in their iPhone 6 and iPhone 6s, while some on iPhone 7s and iPhone SE. Apple did not know about the bug before and it is expected to fix the bug in upcoming release.