Microsoft is facing global fallout from a serious SharePoint server flaw that has impacted more than 400 organizations, according to Bloomberg. Dutch cybersecurity firm Eye Security reported a sixfold surge in SharePoint-related cyberattack victims within days.

A July 8 fix for a critical SharePoint zero-day failed to stop active exploitation, enabling state-backed attackers to breach nearly 100 organizations worldwide.

A critical security vulnerability in Microsoft SharePoint has been actively exploited by threat actors to infiltrate thousands of organizations worldwide.

Microsoft issued an emergency fix to close off a vulnerability in its SharePoint software that hackers have exploited to carry out widespread attacks on businesses and at least some federal agencies.

Over 100 organizations were hacked via a SharePoint flaw. Governments and businesses targeted in a major Microsoft server breach.

A series of cyber intrusions targeting Microsoft’s SharePoint platform has triggered alarm across global businesses and government agencies, drawing renewed scrutiny of enterprise cyber risk frameworks and raising the stakes for insurers underwriting coverage in a landscape increasingly defined by state-linked digital espionage.

Microsoft Corp. said a Chinese hacking group is exploiting security vulnerabilities in the company’s SharePoint servers to deploy ransomware, following a cyberattack discovered last week that has affected hundreds of entities around the world.