Officials say a Chinese hacking group dubbed Salt Typhoon compromised at least eight of America’s telecoms networks. The intruders stole the call-record metadata of a “large number” of Americans. They gained access to the wiretap requests of security agencies—meaning they could work out if any Chinese spies or agents were under American surveillance.

The United States must do more to address hacking threats after China's alleged efforts known as Salt Typhoon to infiltrate American telecommunications companies and steal data about U.S. calls, senators said at a hearing Wednesday.