The bug first came to light on Monday when posts on social media showed the flaw in action, though teenager Grant Thompson discovered it more than a week earlier and attempted to report it to Apple to no avail. Apple thanked the teen and his mother for their efforts to alert the company of the issue. The flaw allowed a person to start a Group FaceTime call, add another person and listen through their device before they pick up. The flaw affected FaceTime calls placed from both iOS and MacOS devices.
Apple responded to reports of the flaw by disabling the Group FaceTime feature, preventing anyone from making calls until the issue is fixed. The company apologized for the bug in a statement and insisted that its engineering team took action to address it as soon as it was informed of the problem despite the long period of time between the Thompson family's report and Apple's first response to the problem.