SUBREDDIT: r/relationships
TITLE: My [21F] friend [22M] got recorded through his iPhone camera and is now being threatened for money.
POST: I apologize if this sounds a bit rushed or if this might not be the right place to post a question like this. 

My friend was watching porn and soon after received a friend request from a stranger located in Asia. Somehow, this person found my friend's information and sent a video of him jerking off to his Facebook and is now demanding money. He sent the money. 

I'm just wondering if there is anything I can do to possibly help my friend in this situation. I never knew that hacking through someone else's camera would be possible. If this isn't the right place for this question, any advice would be greatly appreciated!
TL;DR: 
friend got recorded masterbating through his iPhone camera while watching porn and is now being threatened to send money or else the video will be uploaded