There’s a major issue affecting FaceTime right now, which all MacRumors readers should be aware of. A bug with Group FaceTime can let someone force a FaceTime call with you, giving them access to your iPhone, iPad, or Mac’s video and audio even when you don’t accept the FaceTime call.
In this video, we demonstrate how the bug works, going through the steps to initiate a call and listen in on someone’s audio and video without their permission.
Read more – https://www.macrumors.com/2019/01/28/facetime-spying-bug-demo/
How to disable FaceTime – https://www.macrumors.com/how-to/turn-off-facetime/