Chinese Hackers Breach US Govt Email Through Microsoft Cloud

Chinese state-linked hackers secretly accessed email accounts at around 25 organizations, including government agencies, in a sweeping cyberespionage campaign, Microsoft said Wednesday.

Microsoft did not say which organizations or governments had been affected by the digital intrusion, but the White House said the U.S. had reported it to Microsoft.

National Security Council spokesman Adam Hodge said in a statement on Wednesday that an intrusion in Microsoft's cloud security had "affected unclassified systems."

"Officials immediately contacted Microsoft to find the source and vulnerability in their cloud service," he added.

"We...