You may want to be more aware of what you say on your phone.
There's a newly discovered bug in the phone's FaceTime app that lets people hear through someone else's phone... Even if they haven't answered the call.
This bug seems to rely on the FaceTime group call feature, which launched last year.
Apple says a fix is coming this week, but in the meantime, the best thing to do is turn off FaceTime on your phone to prevent anyone from trying to snoop on you.
Here's how - Open settings, choose FaceTime, and toggle the button so that it's off.