Tad is right. Below is my full explanation of what the PC's know about Manjappa's involvement on Thought (to date on posted episodes).
[spoiler]The secret Cognite bunker on Luna was raided by a TITAN, merely because TITAN's are like honey-badgers...inscrutable.
Cognite was storing the corporate ego backups of every researcher on Thought in that bunker. A TITAN could now tailor-make malware, Basilack, and YGBM hacks for everyone in the operation. Thought station was in charge of researching seed-AI (Augustine), and now at least one TITAn in the universe knew about it.
Rather than relive the Lost incident by trying to cover it up, Cognite confessed to the Planetary Consortium. The PC kept it quiet (because allowing Cognite's continued existence after the Lost project would have made them look just as responsible), but could not tolerate the existence of a bunch of seed AI scientists, highly vulnerable to the Exsurgent virus, walking around. They turned to their enforcement arm, Oversight, who in turn assigned an auditor known only as Manjappa.
Know Evil was Manjappa's (very effective) answer. If Yelena Chicako hadn't been undercover on the station, no one outside PC controlled ego banks would have ever known about the wide-spread ego corruption that occurred because of the virus; the station would have merely floated up there, secretive and forgotten.
How Manjappa got his hands on TITAN tech and learned to control it has yet to be revealed in the campaign, but we are getting there.[/spoiler]
