This is a most excellent place for technology news and articles.
In a potential future conflict, high-value GPS satellites risk being hit or interfered with. If this happens, the loss of GPS could have severe consequences for communication, navigation, and banking systems in the United States.
Banking?
accurate timekeeping? that's all I can think of for trading at least.
Yup, you're absolutely right - GPS is used in high frequency trading:
https://www.institutionalinvestor.com/article/2bsvkt2168ptbcwnib5s0/portfolio/could-gps-hackers-cause-the-next-flash-crash
And the SWIFT System.
Banking?
accurate timekeeping? that's all I can think of for trading at least.
Yup, you're absolutely right - GPS is used in high frequency trading:
https://www.institutionalinvestor.com/article/2bsvkt2168ptbcwnib5s0/portfolio/could-gps-hackers-cause-the-next-flash-crash
And the SWIFT System.