Security researchers say Microsoft customers should take immediate action to defend against the ongoing cyberattacks, and must assume they have already been compromised.

Patches have been issued for two versions of Microsoft’s SharePoint software, while one version remains vulnerable.

Federal cybersecurity officials have issued a warning to Microsoft users about a security flaw allowing hackers to access to certain SharePoint systems.

A China-linked threat actor has been observed exploiting SharePoint servers to deliver ransomware, according to Microsoft researchers, in the latest sign of worsening attacks against on-premises SharePoint Server customers.

Microsoft is issuing an emergency fix to close off a vulnerability in Microsoft’s SharePoint software that hackers have exploited to carry out widespread attacks on businesses and at least some federa

OpenAI CEO Sam Altman says the company will surpass 1 million GPUs by the end of 2025, but his sights are set on 100 million. Already backed by the world’s largest AI data center in Texas, OpenAI’s infrastructure push highlights the growing clash between AI ambitions and power grid realities.

Microsoft recently patched two major flaws in SharePoint on-prem instances, but the effects could be long-lasting.

Two Chinese nation-state actors and one China-based threat actor have tried to exploit the vulnerability for weeks, Microsoft said.

Microsoft has pointed the finger at three Chinese nation-state actors for exploiting the SharePoint vulnerabilities. Here's what we know about the security flaws and how to guard against future attacks.