Security News > 2024 > April > US Cyber Safety Review Board on the 2023 Microsoft Exchange Hack

US Cyber Safety Review Board released a report on the summer 2023 hack of Microsoft Exchange by China.
The Board finds that this intrusion was preventable and should never have occurred.
The Board also concludes that Microsoft's security culture was inadequate and requires an overhaul, particularly in light of the company's centrality in the technology ecosystem and the level of trust customers place in the company to protect their data and operations.
How Microsoft's ubiquitous and critical products, which underpin essential services that support national security, the foundations of our economy, and public health and safety, require the company to demonstrate the highest standards of security, accountability, and transparency.
The board was established in early 2022, modeled in spirit after the National Transportation Safety Board.
News URL
Related news
- China-Linked Cyber Threat Group Hacks US Treasury Department (source)
- CISA says recent government hack limited to US Treasury (source)
- US Treasury hack linked to Silk Typhoon Chinese state hackers (source)
- US sanctions Chinese firm, hacker behind telecom and Treasury hacks (source)
- Microsoft: Exchange 2016 and 2019 reach end of support in October (source)
- Microsoft: Outdated Exchange servers fail to auto-mitigate security bugs (source)
- A PostgreSQL zero-day was also exploited in US Treasury hack (CVE-2025-1094) (source)
- Microsoft's End of Support for Exchange 2016 and 2019: What IT Teams Must Do Now (source)