"Software developer Abraham Masri found the bug, called “chaiOS,” and posted it on GitHub Tuesday afternoon. Masri told BuzzFeed News that he found the vulnerability while “fuzzing with the operating system.” In other words, he was trying to break the operating system by inputting random characters into its internal code."
...hm, and then later: "The chaiOS GitHub page has been taken down and Masri’s account was suspended. But that doesn’t mean iOS users are safe."