Microsoft is investigating whether a leak from its early alert system for cybersecurity companies allowed Chinese hackers to exploit flaws in its SharePoint service before they were patched, Bloomberg News reported on Friday.

Microsoft blamed two Chinese nation-state actors for exploiting recently discovered security flaws in SharePoint to infiltrate vulnerable organizations, like schools, state governments, and the U.S. government’s top nuclear security agency.

Software giant Microsoft is at the center of cybersecurity storm after China-linked hackers exploited flaws in SharePoint servers to target hundreds of organizations.

Microsoft confirms Chinese hackers exploited a SharePoint flaw; Patches now available. Cloud-based Microsoft 365 not affected.

Good morning. Microsoft says Chinese hackers exploited flaws in its software. Meme stock fever is spreading like it’s 2021. And heavy metal icon Ozzy Osbourne dies at age 76. Listen to the day’s top stories.

A significant flaw in a widely used Microsoft product allowed multiple Chinese-linked hacking groups to breach dozens of organizations across the globe and at least two U.S. federal agencies.

Several entities in South Africa have been compromised by hackers who exploited a security vulnerability in Microsoft's (NASDAQ:MSFT) SharePoint servers, according to Eye Security, the cybersecurity company that identified an early wave of attacks last week,