The dreadful Group FaceTime bug that allowed a caller to hear their recipient before they pick up has been addressed.
When the exploit was first publicized on the evening of January 28, Apple rushed to address it, promising a fix “later this week” and disabling the ability to make Group FaceTime calls on the server side. On Friday, February 1, it issued a statement apologizing for the bug and bumping the software update to the following week.
Apple has now released iOS 12.1.4, which promises to fix the Group FaceTime bug. It's a serious bug that can affect your privacy, and we recommend all users update soon.