‘Black dot’ bug is the latest Unicode text handling flaw to crash iPhone and iPads, works on iOS 11.3 and iOS 11.4

A new Unicode text bug is being spread around today, popularised by a video by EverythingApplePro. It’s being called the ‘black dot’ bug because of its origins on Android as a bug relating to WhatsApp: it was being spread with the following emoji: 👈🏻. The iOS version of this bug is a bit different in its mechanics, but neither variants actually rely on the visible black dot character to cause the freezes and crashes.
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