A bug in Apple’s FaceTime allows callers to access the microphone and front-facing video camera of the person they are calling. A video showing the steps required to trigger the bug went viral on Twitter and Snapchat. An Apple spokesperson said the company is “aware of this issue and we have identified a fix that will be released in a software update later this week” Until the update is released, go to your iPhone Settings and disable FaceTime to avoid snooping on your conversations.”]
Source: https://www.buzzfeednews.com/article/nicolenguyen/facetime-bug-iphone