Alerts

Security advisories, patches, and warnings

CISA Silently Updated Ransomware Intelligence on 59 Vulnerabilities in 2025 Without Notifying Defenders

Alerts

CISA Silently Updated Ransomware Intelligence on 59 Vulnerabilities in 2025 Without Notifying Defenders

CISA has been silently updating its Known Exploited Vulnerabilities (KEV) catalog when it confirms that vulnerabilities are being exploited by ransomware groups — without notifying defenders when those changes occur. Glenn Thorpe, senior director of security research and detection engineering at GreyNoise, documented the gap by downloading daily KEV snapshots for

By Zero Day Wire
APT28 Weaponizes Microsoft Office Zero-Day Within 24 Hours, Targets Ukraine and EU with Covenant Backdoor

Alerts

APT28 Weaponizes Microsoft Office Zero-Day Within 24 Hours, Targets Ukraine and EU with Covenant Backdoor

Russian state-sponsored hacking group APT28 weaponized a critical Microsoft Office zero-day vulnerability within 24 hours of public disclosure, launching targeted attacks against Ukrainian government agencies and European Union institutions. Ukraine's Computer Emergency Response Team (CERT-UA) detected exploitation attempts beginning January 27 — just one day after Microsoft published details

By Zero Day Wire