[acoard]

At most, it would be copyright infringement if Twitch (or Amazon) claimed copyright ownership of the code, which I assume they do.

There's no such "trade secrets" laws or anything like that you're violating. Perhaps the hacker has broken laws of unlawful access (i.e. hacking), but you certainly aren't just by downloading it. It's as bad as downloading a song or streaming a movie on a sketchy website. In practice, I've never heard of anyone getting sued for downloading code in a large leak.

When the Windows source code got leaked, so many people looked at it, including FAANG engineers. As long as you don't bring any of that stuff to work you're fine. That includes the knowledge[0]

[0] https://en.wikipedia.org/wiki/Clean_room_design