Is it true? Is Halo 2 really leaked?
It seems to be that way, yes. It would seem that the french PAL version of the game has surfaced on the internet.
Did Bungie get hacked or something?
Of course not. This is almost positively the work of some jerk in the manufacturing plant who pocketed the game is it is being printed in mass for world release on the 9th of November.
What can I do about it?
STOP POSTING LINKS TO LEAKED INFORMATION WHERE THE PUBLIC HAS EASY ACCESS TO IT.
The rules have not changed from what we said about leaked magazine shots. Clearly, this leak is highly illegal. By posting links to where it can be downloaded, or even by posting links to screens of the leaked game, you're contributing to the problem by spreading the leaked information. Further, you may spoil the game for people who have worked hard to keep their first experience of Halo 2 pure.
News source: Bungie Forums