Windows Defender Zero-Day “RoguePlanet” Lets Attackers Gain SYSTEM Privileges

A newly disclosed zero-day vulnerability dubbed “RoguePlanet” is affecting Microsoft Defender, allowing attackers to escalate privileges and obtain full SYSTEM-level access on vulnerable Windows machines. A security researcher recently published the issue under the alias “MSNightmare,” who released a proof-of-concept…

Fable 5, Tchap hacked, CISA priorities

Anthropic releases Claude Fable 5 French government messaging service breached CISA rethinking risk evaluations Get the show notes here: https://cisoseries.com/cybersecurity-news-claude-fable-5-tchap-hacked-cisa-priorities/  Thanks to our episode sponsor, Doppel Social engineering attacks look trustworthy — a routine request, an internal email, a familiar…

Microsoft Patch Tuesday June 2026 Fixes 198 Vulnerabilities, Including 3 Zero-Days

Microsoft’s June 2026 Patch Tuesday fixes 198 vulnerabilities across Windows, Office, Azure and other Microsoft products, including three zero‑day flaws that were exploited or publicly disclosed before patches were available. Security teams should fast‑track deployment of BitLocker and HTTP.sys, Remote…