US offers $10 million reward for accused Chinese 'Hafnium' hacker

The State Department is offering $10 million for information on Zhang Yu, a Chinese national accused of involvement in the Hafnium hacking campaign. Officials say he worked for Chinese intelligence and stole COVID-19 research; his alleged accomplice Xu Zewei was extradited to the US in April.

• $10 million reward offered for information on Hafnium suspect Zhang Yu
• FBI says Hafnium targeted over 60,000 US entities
• More than 12,700 victims were successfully compromised
• Alleged accomplice Xu Zewei was extradited to the US in April 2026