The X-37b is everything you could want in an orbital surveillance, espionage and sabotage platform and it has existed for years...?
A good recent article on the x-37b
https://migflug.com/afterburner/fr/x-37b-space-force-mystery-spaceplane/
Officially, it tests reusable spacecraft technologies and carries experiments for the government. Unofficially, its knack for changing its orbit and vanishing from where trackers expect it has made it a favourite Cold-War-style headache for America’s rivals — a point a former Air Force secretary once made with unusual candour.
“It can do an orbit that looks like an egg, and when it’s close to the Earth it’s close enough to the atmosphere to turn where it is. Our adversaries don’t know where it’s going to come up next, and that drives them nuts. And I’m really glad about that.”
Heather Wilson — former U.S. Secretary of the Air Force (Aspen Security Forum, 2019)