RandomStranger

Sounds great. But I suspect the reality is they would be provided by the MIC at €/$10000 a piece, while they can for sure not buy fewer jets. They will happily slash your welfare though to afford it :)

So you would have governments spend tax money on secure phones for personell to make Instagram posts and browse Pornhub?

Military personnel are people too. Regular people. And most of the stuff the do is boring and uninteresting to adversaries. Putting too hard restrictions would just lower morale and risk future recruiting.

So like in any organization you rely on infosec training and hope that it will work. Like in any organization the human factor will cause it to occasionally fail.

Many selfhosted project planning tools have those features. Personally I have set up Vikunja.