#7
The Record
threat-intel
October 07, 2026 at 19:50 UTC
US posts $10 million reward for accused Chinese ‘Hafnium’ hacker
AI Summary
The U.S. government posted a $10 million reward for Zhang Yu, a Chinese national identified as a prominent figure in the Hafnium hacking campaign that breached thousands of computers running on-premises Microsoft Exchange servers and exfiltrated large volumes of documents. Hafnium was attributed to Chinese state-sponsored actors and exploited a series of ProxyLogon-era Exchange vulnerabilities. The bounty signals continued U.S. government efforts to hold China-linked threat actors publicly accountable.
Relevance score: 76.0/100
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