MIT Media Lab investigation uses calendar info

I read MIT Will Investigate Media Lab's Ties to Jeffrey Epstein Following Director's Resignation as just another "yeah, people will do just about anything for money" article until I came to this part:

On Ito’s calendar, which typically listed the full names of participants in meetings, Epstein was identified only by his initials. Epstein’s direct contributions to the lab were recorded as anonymous.

(underlining mine)

THIS is really interesting!

If you want to know how to do stuff like this forensically (or even proactively) in Exchange or Office 365 let us know -- our wheels are already turning on this and a few other things.