Given that it's in the West I still think it's probably NSA compromised, but I'm not nearly important enough for the government to blow their cover about.
That's tinfoil hat nonsense. The NSA aren't gods, wizards, or aliens. They don't have the best people (those are mostly at FAANG), and their total budget is a fraction of Big Tech's. If you ever find yourself assuming that the NSA/CIA/etc. have magical knowledge that's decades ahead of everyone else, or have "assets" in every village on Earth, you know you've been watching too much TV.
Its less "super top secret spy agency hires a hitman to take out Castro" and more "we're just going to throw whatever we can at the wall and see what works". Plans included literally mailing him exploding cigars (on the assumption that Castro liked smoking so mailing him one might just work), hiring his ex to try and kill him on a plane ride (which just resulted in the ex rebounding with Castro) and some campaigns to try and make him look weak that can only be described as "hilarious" like flying a plane over the country and dropping leaflets with a bounty of 0.02$ on his head with the idea that he was so weak that the bounty wasn't worth anything (although this one was rejected, they also attempted to make him look foolish by lacing a radio broadcast room with LSD).[1]
To pull a quote from Alan Moore: "If you are on a list targeted by the CIA, you really have nothing to worry about. If however, you have a name similar to somebody on a list targeted by the CIA, then you are dead."
[0]: https://en.m.wikipedia.org/wiki/Acoustic_Kitty
[1]: https://en.m.wikipedia.org/wiki/CIA_assassination_attempts_o...