Have you ever used a social media app on your iPhone while using the bathroom? ?
iPhone apps with camera permissions can potentially record each and every activity of your life and even upload them.
Once you grant an app access to your camera, it can
- access both the front and the back camera
- record you at any time the app is in the foreground
- take pictures and videos without telling you
- upload the pictures/videos it takes immediately
- run real-time face recognition to detect facial features or expressions
Without any indication / LED lights!
Checkout these findings by Googler, Felix Krause.
(more details here).