Going to say that this is pretty bad.<p>FakeUnicode [0] claims that setting it in an Wifi SSID is enough.<p>I can personally attest that my iPhone is currently stuck at the lock screen, crashing back to that when I enter my pin; after receiving the character in a Twitter DM (causing an iOS notification).<p>[0] <a href="https://twitter.com/FakeUnicode/status/963335318601531392" rel="nofollow">https://twitter.com/FakeUnicode/status/963335318601531392</a>