Krebs on Security is a cybersecurity blog authored by Brian Krebs, an investigative journalist and cybersecurity expert. With a focus on cybercrime, hacking incidents, and data breaches, Krebs on Security provides  analysis, investigative reporting, and security research on emerging threats and cybersecurity trends. Developers and security professionals can learn about the latest cybersecurity threats, security best practices, and incident response strategies from Krebs' investigative reporting and expert analysis.

Krebs on Security

Microsoft's April 2026 Patch Tuesday addresses a record-breaking 167 security vulnerabilities, including an actively exploited SharePoint Server zero-day (CVE-2026-32201) enabling content spoofing and phishing, a SQL Server RCE flaw (CVE-2026-33120), and the publicly leaked Windows Defender privilege escalation bug 'BlueHammer' (CVE-2026-33825). Google Chrome patched its fourth zero-day of 2026, and Adobe issued an emergency fix for an actively exploited Adobe Reader RCE flaw (CVE-2026-34621) that has reportedly been exploited since November 2025. Security researchers note the spike in patch volume is likely driven by expanding AI-assisted vulnerability discovery capabilities.

Patch Tuesday, April 2026 Edition – Krebs on Security