""
Salt Typhoon also compromised the private portals, or backdoors, that telephone companies provide to law enforcement to request court-ordered monitoring of phone numbers pursuant to investigations. - WetShaving
Chinese hackers are alleged to have broken into US phone networks, giving Chinese intelligence services a window onto specific Americans’ phone and messaging activity.
EFF is a legit site and a very good foundation to donate to. They have many good studies, articles, documentation and lobbying against surveillance.
Yes EFF is legit I was speaking of ops link