Security News > 2023 > August > US cyber safety board to analyze Microsoft Exchange hack of govt emails

US cyber safety board to analyze Microsoft Exchange hack of govt emails
2023-08-11 17:35

The Department of Homeland Security's Cyber Safety Review Board has announced plans to conduct an in-depth review of cloud security practices following recent Chinese hacks of Microsoft Exchange accounts used by US government agencies.

In mid-July 2023, Microsoft reported that a Chinese hacking group tracked as 'Storm-0558' breached the email accounts of 25 organizations, including US and Western European government agencies, using forged authentication tokens from a stolen Microsoft consumer signing key.

After working with CISA to identify crucial logging data needed to detect attacks, Microsoft announced that they now offer it for free to all Microsoft customers.

Wiz revealed that the Chinese hackers could have used the compromised key to access various Microsoft applications and any customer applications that supported Microsoft Account authentication, so the incident might not be limited to accessing and exfiltrating emails from Exchange servers.

Stolen Microsoft key offered widespread access to Microsoft cloud services.

Microsoft: Chinese hackers breached US govt Exchange email accounts.


News URL

https://www.bleepingcomputer.com/news/security/us-cyber-safety-board-to-analyze-microsoft-exchange-hack-of-govt-emails/

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