Major cyberattacks in 2025 so far have included the Microsoft SharePoint Server “ToolShell” attacks, the ransomware attack ...

A critical SharePoint zero-day (CVE-2025-53770) has been used to breach 400 firms, including the US nuclear agency. Microsoft ...

Unknown threat actors have reportedly breached the National Nuclear Security Administration's (NNSA) network in attacks ...

Unknown threat actors have breached the National Nuclear Security Administration's network in attacks exploiting a recently ...

More than 400 systems have been compromised so far in the widespread cyberattacks exploiting vulnerabilities in Microsoft ...

Security experts at Google and Microsoft have discovered that Chinese government-backed hackers are exploiting a serious flaw ...

Chinese hackers have exploited vulnerabilities in on-premises MS SharePoint document servers. Coud-based services are not thought to be affected.

One of the agencies affected by the zero-day vulnerability is the National Nuclear Security Administration (NNSA).

Microsoft has pointed the finger at three Chinese nation-state actors. Here's what we know, plus how to guard against future ...

Microsoft says the Chinese threat actors Linen Typhoon, Violet Typhoon, and Storm-2603 have been exploiting the ToolShell ...