Threat actors exploit SharePoint flaws to access internal systems, steal sensitive data, and carry out surveillance, impersonation, and extortion.

Microsoft is investigating whether a leak from its Microsoft Active Protections Program (MAPP) enabled Chinese state‑linked hackers to exploit a critical SharePoint server vulnerability before its pat

It's not just data theft. A China-based hacking group is using a flaw in vulnerable SharePoint servers to deliver ransomware, Microsoft warns.