Unauthorized access to a computer system. I'm sure if I connected to some port on a computer belonging to Meta without them wanting it, that would be the crime I would be charged with. But somehow if Meta connects to a port on my phone without me agreeing to it, it's not a crime?
What function does Instagram provide with this WebRTC listener besides tracking?
People install Instagram to look at photos and reels, not to help facebook track them better.
If I put a crypto-mining script in a game I don't get to claim "well they installed the app" when people complain. The victims thought they were installing a game, not a crypto-miner.
Here, the victims thought they were installing a photo sharing application, not a tracking relay.