Russia
China
the entire EU
I mean seriously, any country without a constitution prohibiting this is likely involved in this behavior. I wouldn't put this past Canada or Australia.
Mexico? I doubt they have the manpower to deal with this. They can't even track stop the corruption within a municipal office, let alone tracking millions of people. Maybe the drug lords use this stuff. I wouldn't put it past Apple to deal with the mob if they could earn a profit doing so.
The Saudis. 100%.
The reason the Saudi Royal family tossed Musk a few billion to buy Twitter wasn't some charity act. Unlike the other investors in that financial sinking ship dumpster fire, they're not asking for their money back. Their few billion was in exchange for pretty much each and every journalists Twitter account details, private messages, locations of tweets, especially ones the royals see as targets they now have data on so those journalists can be followed, threatened, or Putin'd.
Realize the Saudi Royal Family are quintillionaires, nobody really knows how wealthy they are but it'd make Phony Stark, Jeff Bozos, Gates, Warren Buffet look financially like homeless people. The Prince is all about paranoia and loves spying with the occasional guy doing suicide by shooting himself in the back several times while throwing himself off a balcony.
He's so paranoid he's even paid millions in hiring Israel's top secret global spy NSO Group and is known to use their Pegasus software. As in, even as an evil dictator who's faith hates the Jews you'll happily give them money to keep tabs on people, and the Saudi's gladly do, and Israeli's NSO gladly takes their money.
The Saudis have also paid hundreds of millions to the US military in exchange for information.
You better believe Saudis are involved here.
Granted, if you're not one of the several hundred-thousands on their global watch list probably don't be too worried but if you are, yeah, may want to go back to a flip phone.