A major cybersecurity incident has reportedly hit China’s national supercomputing infrastructure, with hackers allegedly stealing a vast amount of sensitive data in what experts are calling one of the most serious breaches targeting the country’s high-performance computing systems.

According to reports, a group known as “Flaming China” has been linked to the attack, with claims that they accessed a government-linked supercomputer system and extracted extremely large datasets—potentially including defense-related and scientific research data. Security analysts suggest the stolen data volume could reach into petabytes, highlighting the scale of the breach.

Investigations indicate the compromised system may be part of China’s national supercomputing network, which is used for advanced simulations, military research, and scientific development. Cybersecurity experts warn that such a breach could expose sensitive national projects and raise concerns over infrastructure security.

The attackers are also believed to have attempted to monetize or distribute the stolen data, adding a cybercrime angle to what may be both espionage and financial hacking activity.

While authorities have not fully disclosed the extent of the damage, early assessments suggest the incident could rank among the largest cyber intrusions ever reported against a state-level computing system.

Officials are currently investigating how the attackers gained access, with theories ranging from exploited software vulnerabilities to compromised credentials and advanced persistent attack techniques.

The incident highlights growing global concerns over cyber warfare targeting critical national infrastructure, especially supercomputers that support both civilian innovation and defense capabilities.