Apple just released iOS 12.1.4 and a macOS 10.14.3 patch. These updates fix the huge group FaceTime flaw that could let anyone call your iPhone, iPad, or Mac and hear audio or see video—even if you don’t accept the call.
The good news is you don’t have to worry about this flaw right now. Apple says it’s permanently disabled group FaceTime on iOS 12.1.3 and macOS 10.14.2, as well as older versions of the software.
The bad news was you couldn’t use group FaceTime for more than a week while Apple worked on the fix. As Apple’s system status page points out, the group FaceTime servers are now back online and you can once again make group FaceTime calls— but only after you update.
To update an iPhone or iPad, head to Settings > General > Software Update on your iPhone or iPad and install the update. On a Mac, head to Apple menu > System Preferences > Software Update.
After you’ve installed the update, you can feel safe re-enabling FaceTime on your iPhone, iPad, or Mac.
On an iPhone or iPad, head to Settings > FaceTime and toggle FaceTime on. On a Mac, launch FaceTime and select FaceTime > Turn FaceTime On.
You’ll have to repeat this step on each iPhone, iPad, and Mac you own—the option is controlled separately for each device.
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Source : Update Now to Fix Group FaceTime on Your iPhone, iPad, and Mac
