APT28, an evolution of tradecraft

Context Sekoia’s Threat Detection & Research (TDR) team has been tracking APT28 for several years. The intrusion set, also known as Fancy Bear, Forest Blizzard, Sofacy, Pawn Storm or Sednit and publicly attributed to the GRU’s Unit 26165, is one…

Big Patch Tuesday, ‘Nightmare Eclipse’ drops Windows 0-day, Claude Fable restricted at Microsoft

Patch Tuesday for the books ‘Nightmare Eclipse’ drops Windows 0-day Claude Fable restricted at Microsoft Get the show notes here: https://cisoseries.com/cybersecurity-news-big-patch-tuesday-nightmare-eclipse-drops-windows-0-day-claude-fable-restricted-at-microsoft/ Thanks to our episode sponsor, Doppel Social engineering attacks look trustworthy — a routine request, an internal email, a…

PoC Exploit Released for Linux Kernel Guest-to-Host Escape Vulnerability

A proof-of-concept (PoC) exploit has been publicly released for a critical Linux kernel vulnerability, tracked as CVE-2026-46316, enabling guest-to-host escape in KVM/arm64 environments. The flaw, dubbed “ITScape” by security researcher Hyunwoo Kim (V4bel), affects the Kernel-based Virtual Machine (KVM) subsystem…