According to 9to5Mac, the bug is easy to recreate by choosing to "add person" while the call is ringing. Without the recipient answering the phone, audio from the other user's phone is then streamed to the caller.
The issue occurs when a user phones someone using FaceTime, then swipes to add another person to the call and adds their own number. Of course, that person can hear you as well, but only if it's aware that a FaceTime call is in progress.
FBN's Dagen McDowell on a bug in Apple's FaceTime app that allows people to eavesdrop on FaceTime users' calls.
All you can do is disable FaceTime to prevent people from snooping on you.
Apple's online support page noted there was a technical issue with the application and that Group Facetime "is temporarily unavailable". This will cause the microphone of the person you are calling to turn on and allow the caller to listen to what is happening in the room.
The bug will also broadcast video if the recipient hits the power or volume button to ignore the call.
The flaw, which gained attention on Monday, relates to the company's FaceTime chat function.
He said: "The FaceTime bug is an egregious breach of privacy that puts New Yorkers at risk".
All was going well during the National Privacy Day in the USA, with Apple's Tim Cook commemorating the event by emphasizing on the importance of data privacy until one of the offerings of the Cupertino giant was attacked by a bug. The timing couldn't be worse, given that Apple is set to host its earnings call for the October-December quarter of 2018 in just a matter of hours. In its iOS 12.1 security document from last November, Apple called iOS "a major leap forward in security for mobile devices".
Apple is scrambling to fix a serious bug that has been discovered in its FaceTime messaging services.