Can your ipone 5c camera be hacked into?

Just wondering I have an iphone and I was wondering if the cameras (both the front and back one) can be hacked? Is it possible, because I know on a computer if the camera is built in your supposed to cover it with paper or tape so nobody takes pics of you or records you, so should I like cover my iphone's camera or take it out of my room when i'm changing and stuff so nobody records me and like puts it on the internet? Is any of this possible?

It's very rare for iphone cameras to be hacked but just on the safe side turn your camera in a direction nobody will see you!

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