Excellent paper.
I have questions:
1) is turning off telemetry (opt-out) effective against this? 2) How will this be different between licenses? I would be very interested to see what is collectes when you have something like an E5 license and have Defender ATP and AIP turned on (I don't have that currently). I recall it sends a ton of data (>2000k dns requests/hour for an active user just for new connections to MS) perhaps some of that is left on disk? Would file classification with AIP (e.g.: new document/email is created) be logged? Is it fair to assume the Win10 they tested with is not for enterprise?