Re: social media data hoovering is an obvious security risk
"The US military is quite a big outfit.
I dont think you can manage it with a couple of A.D. groups.
I bet theres dozens of different I.T departments across dozens of divisions of Military , all with different ideas on how to manage a phone and what apps can be used."
As part of JEDI, the DoD did a survey of data centres and decided ~225 were in-scope. The number of server rooms/server closets/random places holding more than a few important servers was around 650. And that ignores mobile server facilities (intentional or otherwise).
It probably also ignores the facilities that are too heavily classified to show up on surveys.