https://wccftech.com/ios-11-2-5-beta-6-fixes-chaios-messages-bug/ >Remember the ChaiOS message bug we talked about yesterday? Well, it appears as though it has been patched in the latest iOS 11.2.5 beta. >Thanks to the magic of Unicode and a maliciously crafted URL, the text rendering engine of an iOS device can easily be overloaded, crashing everything in one fell swoop. Same goes for the Mac too.