US posts $10 million reward for accused Chinese ‘Hafnium’ hacker

US officials have offered a $10 million reward for information on Zhang Yu, who is accused of being involved in the Hafnium hacking campaign. The Hafnium campaign was a significant cyber operation that resulted in the breach of thousands of computers and the theft of large amounts of documents. Zhang Yu is said to have been a key figure in this campaign. The reward suggests the US is actively seeking to apprehend Zhang Yu. The Hafnium campaign was carried out by hackers, but the excerpt does not specify their affiliation beyond the name of the campaign. The US is seeking information that could lead to Zhang Yu's capture.