U.S. investigating China-backed hack of telecom companies. Here's what to know.

Authorities are investigating a cyberattack linked to China-backed hackers that targeted major U.S. telecommunications companies and systems used for intelligence collection.

U.S. investigating China-backed hack of telecom companies. Here's what to know.
Authorities are investigating a cyberattack linked to China-backed hackers that targeted major U.S. telecommunications companies and systems used for intelligence collection.