Russia-linked hackers known as Fancy Bear have launched a sneaky cyberattack called Operation Neusploit. They exploit a fresh zero-day flaw in Microsoft RTF files, CVE-2026-21509, to steal emails from targets in Central and Eastern Europe. Zscaler ThreatLabz researchers spotted this campaign and linked it with high confidence to the notorious APT28 group. The attacks hit […] The post Fancy Bear Hackers Abuse Microsoft Zero-Day in Email Theft Campaign appeared first on Cyber Security News.