I don't see a huge issue there. You need not necessarily be able to run your code in parallel to game, the console could provide the option to run either your g

I don't see a huge issue there. You need not necessarily be able to run your code in parallel to game, the console could provide the option to run either your game or other code. Of course you can now make the argument that any form of code execution increases the attack surface. And you're right but hypervisors can be quite effective. Also the XBOX One can be put in developer mode to run arbitrary UWP apps and has not yet had any major exploits (to my knowledge), where the PS4 has no similar features, but has had several firmware versions with significant security flaws.