Ukraine's Computer Emergency Response Team (CERT) says that Russian hackers are exploiting CVE-2026-21509, a recently patched vulnerability in multiple versions of Microsoft Office.

A hole in Microsoft Office is being exploited by bad actors, including Russian hackers targeting Ukraine's government.

Russia-linked hacking group Fancy Bear is exploiting a brand-new vulnerability in Microsoft Office, CERT-UA says ...

APT28's attacks use specially crafted Microsoft Rich Text Format (RTF) documents to kick off a multistage infection chain to deliver malicious payloads.

APT28 exploited a Microsoft Office flaw to deliver MiniDoor and Covenant Grunt malware in targeted attacks across Ukraine and ...

Ukraine’s CERT says the bug went from disclosure to active exploitation in days Russia-linked attackers are already ...

Hackers are actively exploiting a maximum severity flaw in the Modular DS WordPress plugin that allows them to bypass authentication remotely and access the vulnerable sites with admin-level ...

A critical command injection issue in Fortinet FortiSIEM has been disclosed along with public exploit code, and researchers claim attackers could have been remotely achieving unauthenticated root ...

The hosting provider's compromise allowed attackers to deliver malware through tainted software updates for six months.

Data security research firm Varonis Threat Labs has published a report that details an exploit it calls "Reprompt" that allowed attackers to silently steal your personal data via Microsoft Copilot.