RUMOR: Valve Mailing List Data Revealed

Today some alleged screencaps taken after an exploit was opened in Valve's project management software called Jira spread across the internet. In these screens we see mentions of teams working on the oft-rumored games Half Life 3, Left 4 Dead 3 and a new iteration of Valve's game engine, Source.

Given all the false positives and faked leaks that came before in regards to a potential Half Life 3, I'm choosing to remain skeptical on this until concrete proof is shown. So far we've got the story breaking from the site Valvetime.net (link here) with anonymous sources and claims that Valve has now closed the exploit, leading to advice that one shouldn't even bother trying to get into it.

All of this sounds suspicious to me, but I'll go ahead and post the caps here: