
Security officials walk along a hallway at the Great Hall of the People amid preparatory meetings for the third session of the 14th National People’s Congress in Beijing on March 4, 2025. Pedro Pardo/AFP
The Chinese Communist Party (CCP) has imposed sweeping new security restrictions across government agencies following reports that a major national supercomputing center was hacked, potentially exposing vast amounts of sensitive data, according to people familiar with the matter.
The measures—ranging from bans on mobile phones in offices to tighter controls on networked devices—reflect what analysts and insiders describe as a significant escalation in Beijing’s efforts to prevent data leaks, particularly amid concerns about both external cyberthreats and insider risks.

