Probably simpler than both of those, more as in - there are allegations/comments suggesting that there may be individuals holding trusted positions who may not be as trustworthy as one would hope (based on the potential pathways by which malicious parties may have identified the OP).

Insider threat is still a significant concern to companies, and were one representing Microsoft one might want to at least take a peek at what happened and make sure nothing untoward is occurring.

Standard Disclaimers apply. I am not a Microsofty, nor do I play one on TV. Objects in the mirror may be closer than they appear.