18 years later and still waiting for the management/programmers behind Sony's trojan rootkit to face criminal charges for hundreds of thousands if not millions of violations of the CFAA.
It's not a backdoor. if anything you're the one renting Sony's server space.
But i do wonder if and when this kind of practice will be challenged legally. Rentals are one thing but I thought they let buyers download content they delist precisely to prevent these kinds of questions.