The flaw was discovered by software developer Abraham Masri, who shared a link which can be used to crash the app on social media.
👋 Effective Power is back, baby!— Abraham Masri (@cheesecakeufo) January 16, 2018
Text the link below, it will freeze the recipient's device, and possibly restart it. https://t.co/Ln93XN51Kq
⚠️ Do not use it for bad stuff.
thanks to @aaronp613 @garnerlogan65 @lepidusdev @brensalsa for testing!
This redirects the Messages app to a page stored on Github, a hosting service for computer code, which exploits the bug.
Reported effects include freezing, crashes, restarts and resprings, a process which takes about 10 seconds and returns you to the Lock Screen.
How to fix it here: Tom's Guide