U.S. Says Chinese Hackers Breached Justice Department, NASA, Federal Reserve, and Senate

The U.S. government says Chinese hackers breached networks linked to the Justice Department, NASA, the Federal Reserve, and the Senate. Officials are investigating what information may have been accessed, how long the intrusions lasted, and whether the targets were part of a coordinated campaign. The allegations could heighten tensions between Washington and Beijing while prompting reviews of cybersecurity defenses across federal agencies. China may reject the accusations. Authorities are expected to assess attribution, possible damage, and whether institutions were targeted.