The tech giant said state-backed Chinese hackers broke into some of Microsoft's customers email accounts to gather intelligence on 25 organizations globally.
There has been a breach in Microsoft's email system that has impacted multiple U.S. agencies, the company revealed.
Microsoft says the hack started in mid-May and went undetected until mid-June, when the State Department noticed a small number of individuals at an unspecified number of U.S. agencies were targeted and their emails were breeched. The U.S. Cybersecurity and Infrastructure Security Agency, along with the FBI and Microsoft, concluded the hackers managed to gain access by impersonating authorized users."They did this by using forged authentication tokens to access user email using an acquired Microsoft account consumer signing key. Microsoft has completed mitigation of this attack for all customers," the tech giant said.
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