Finally, the release of the iOS 12.1.4 update took place, which resolves a serious privacy error,
Download iOS 12.1.4
iOS 12.1.4 can be downloaded to all iPhone, iPad devices that have support for iOS 12. Update is available for installation over the air through the Settings - Basic - Software Update application, or you can also update via iTunes by connecting your device to a computer using a USB cable. In the notes to the update, Apple did not go into details, but simply indicated that it was a security update. In fact, this build of the firmware fixes an important vulnerability, namely, a bug in the FaceTime group call function.
Recall that the error in the group callsFaceTime was discovered by one of the users. Using this vulnerability, any user could initiate a FaceTime call with another, and then add it to the group call again, thereby establishing a forced connection without having to press the accept button. Learn more about how this error works, written here. In the end, all this led to the fact that the user can eavesdrop on another interlocutor without his knowledge, and even activate the video call.
The discovery of this bug led to the fact thatApple immediately disabled the FaceTime group call feature on the server side. But after installing iOS 12.1.4, you can use this feature again.