Chinese hack of Microsoft engineer led to breach of US officials' emails, company says
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Chinese hackers stole data from a Microsoft engineer, enabling them to access emails of US officials.
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The hacking gave China insights into US thinking ahead of a trip to China by Secretary of State Blinken.
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Email accounts breached included the US Ambassador to China and the Commerce Secretary.
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A Republican Congressman said his account was also hacked.
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Microsoft has corrected issues that allowed the hackers to obtain the data, as part of efforts to improve security.