I doubt we do. A GPS built by a Chinese company can be exploited to track vehicles and cut their engines.
Cybersecurity startup BitSight said it found six vulnerabilities in the MV720, a hardwired GPS tracker built by MiCODUS, a Shenzhen-based electronics maker, which claims more than 1.5 million GPS trackers in use today across more than 420,000 customers worldwide, including companies with fleets of vehicles, law enforcement agencies, militaries and national governments. BitSight said in its report that it also found the GPS trackers used by Fortune 50 companies and a nuclear power plant operator....The most severe flaw is a hardcoded password that can be used to gain complete control of any GPS tracker, access to vehicles’ real-time location and past routes, and remotely cut off fuel to vehicles. Because the password is embedded directly into the code of the Android app, anyone can dig around the code and find it.Fortunately, the article says the US is not a particularly big customer, just in the "thousands". But militaries, law enforcement, and nuclear plants, should not use code built overseas unless there is no possible exception.
Security flaws in GPS tracker exposing 1M vehicle locations
Researchers warn that the flaws can be exploited to track vehicles and remotely cut enginestechcrunch.com
we're also getting all our telecom networks components and chips from China.
so are there any US communications they don't have access to?