Elon Musk "secretly" disrupted a Ukrainian sneak attack on a Russian naval fleet by turning off Starlink's satellite network near the Crimean coast last year.
It is neither of those things, but he may be subject to an act of retorsion, which isn't bound by the rule of "proportionate response," from both the government of the US, and the government of Ukraine. I don't expect that to happen, but that's what would happen to any of us doing something like that.