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

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

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.

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

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Windows doesn’t offer a single switch to disable Exploit Protection completely. You can only disable individual mitigations system-wide or per app. We strongly recommend turning it off only for ...

Apple patched a zero-click vulnerability that allowed sophisticated attackers to compromise devices and could have led to cryptocurrency theft; it urged immediate updates. Apple is urging users to ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Twice every year, some of the best hackers on the planet get ...

Pwn2Own hackers use $150,000 exploit on VMware ESXi. The elite hackers attending Pwn2Own in Berlin have made hacking history by successfully deploying a zero-day exploit against VMware ESXi. Having ...

Operation Zero, a company that acquires and sells zero-days exclusively to the Russian government and local Russian companies, announced on Thursday that it’s looking for exploits for the popular ...