Front camera randomly flashing. IPhone 7 plus

So there are no notifications, and no saved pictures from this happening. It does not happen all the time. I've had people tell me the phone could be hacked. My previous phone was an android and it WAS hacked by someone that my creepy ex paid to hack into my personal info. My phone company told me that iPhones are harder to hack and yet the front camera will randomly start flashing, every few minutes for sometimes up to and hour, and then it will not do it for about a week, then start again. But there's no rhyme or reason. I have started covering up the front camera while I'm using the phone. While its covered, nothing else flashes. What the heck is happening? Is my new phone already hacked? What can I do?

Today i have received my new iPhone 7. During a FaceTime call my video was constantly changing from bright to dark. When i moved the camera focus (early evening brightness) to a bright light just behind me the HDR processing does nog seem to know the correct brightness levels. This caused flickering of my camera image from bright to dark. Not a very nice way of having a FaceTime conversation

It is also likely hacked. Press charges to your ex if she keeps invading your privacy