The Insomniac breach and extortion may just be the most widely reported incident I’ve seen, in terms of reuse of stolen documents.
My feed is full of outlets reprinting stolen information and really commercially sensitive stuff, YouTube videos discussing documents etc etc. Reddit is full of gameplay for games years from release. I feel bad for devs as this isn’t how they want their work presented, also nobody wants the world to see their sausage.
Example article: https://kotaku.com/what-hacked-files-tell-us-about-the-studio-behind-spide-1851115233