Throughout the development of the popular operating system iOS, there have been a few text bugs that would usually crash the phone. Most of these bugs were found by the infamous image-board website 4chan, and eventually used by internet trolls to crash people's iPhones.
Affected iOS systems
The iOS 6 Text Bug is a bug that crashes the user's iPhone/Mac on iOS 6 or Mac OSX 10.8. It was fixed in iOS 7 and Mac OS X 10.9.
This is the text that crashes it:
سمووحخ ̷̴̐ خ ̷̴̐ خ ̷̴̐ خ امارتيخ ̷̴̐ خ
It will crash and close the application on Safari, it gives an "Aw Snap!" crash error on Google Chrome, however Firefox is immune to it. It is unknown if other browsers are immune to this or not.
This is the text that crashes iOS 7:
effective. Power لُلُصّبُلُلصّبُررً ॣ ॣh ॣ ॣ 冗
This is the text that crashes iOS 10.