If you haven’t upgraded your PS3 you can probably hack it and PS3 Break is what you need.
Thankfully, if you want to play online you have to update the firmware and this hack is useless to you. Stopped cheaters in their tracks.
Yes, yes, I know it can be used for homebrew and I’m all for that, but 99% of the time it’ll be used to run pirated software. Lots of great comments on the subject here.