The evidence for these leaks, first started off with photos of the Halo 4 discs in their DVD casing. While that’s not too hard to fake, it’s much harder to fake what started to happen next; gamertags were shown online playing Halo 4.
That’s when gameplay footage started to get posted on youtube, showing off never before seen footage.
This, I imagine, is when Microsoft started to investigate, because soon afterwards, there were rumors of accounts being banned for ‘illegitimate prerelease title play.’
While it’s unclear if this is a case of select few stores selling copies early, or a case of piracy, with online leaks – one thing is for sure, this doesn’t bode well for 343 Industries.
Though, I suppose they’re in good company, as Halo 2, Halo 3, Halo 3: ODST, and Halo: Reach all were leaked before they hit shelves, as well.
In closing, I’ll leave with a response from Microsoft, “We have seen the reports of Halo 4 content being propped on the Web and are working closely with our security teams and law enforcement to address the situation.”