Sophisticated hackers have accessed email accounts of organizations and government agencies via authentication tokens they forged by using an acquired Microsoft account (MSA) consumer signing key, the company has revealed on Tuesday. “The threat actor Microsoft links to this incident is an adversary based in China that Microsoft calls Storm-0558. We assess this adversary is focused on espionage, such as gaining access to email systems for intelligence collection.” This specific hacking group primarily targets government … More →

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