And if there is not immense amounts of "do not have a fucking fitbit" levels of warnings and policies, that is a problem for the US Navy itself. Because a lot of those will also cache data and send the last N days once they get back to shore.

Again, unless they were ACTUALLY doing sensitive stuff (rather than just "sensitive by default" to protect Leadership(TM) from having to think and make decisions) then we are looking at the same problem the russians have in Ukraine.

Otherwise? It is a policy violation, not a security violation, in and of itself. What people then share on social media is on them.

And a friendly reminder: Policy is made to minimize the risk of a security issue and you should follow it (if only because you are paid to). But it is VERY important to understand what you are actually protecting yourself from so that you understand if policy is even doing anything. Otherwise you get complete insanity as more and more bureaucrats and Leaders(TM) add bullshit so they can get a bonus for being "security minded".