How to disable FaceTime until Apple issues a fix
Apple on Monday said on it will issue a software patch later this week after a bug with major privacy implications was discovered in Apple’s implementation of Group FaceTime.
TheNewsGuru (TNG) reports the bug allows an iPhone user placing a call using Apple’s FaceTime video calling feature to hear audio from the recipient’s phone even if the recipient has not yet picked up the call.
The only way to stop anyone from potentially accessing your audio until a fix is issued is to disable FaceTime on all your Apple devices.
On your iPhone, iPod touch, or iPad, head to Settings -> FaceTime and then toggle the button right at the top to set FaceTime on or off (a green button on screen indicates FaceTime is on).
On a Mac, launch the FaceTime app, go to FaceTime menu near the top left and click on Turn FaceTime Off.