Google Patches Fifth Chrome Zero-Day of 2026 — V8 Engine Flaw CVE-2026-11645 Actively Exploited
Summary Google has released an emergency update for Chrome to address CVE-2026-11645, an actively exploited zero-day vulnerability in the V8 JavaScript and WebAssembly engine. The flaw is an out-of-bounds read…
Microsoft’s Record-Breaking June 2026 Patch Tuesday — 200+ Flaws and 6 Zero-Days Patched
Summary Microsoft dropped a massive June 2026 Patch Tuesday, addressing over 200 security vulnerabilities across its product line — one of the largest patch cycles in the company’s history. Among…
Anthropic Suspends Fable 5 and Mythos 5 Worldwide After U.S. Export Control Directive
Summary Anthropic says the U.S. government issued an export control directive ordering the company to suspend access to Fable 5 and Mythos 5 for any foreign national, inside or outside…
Velvet Ant’s Operation Highland Shows How Attackers Weaponized PAM and SSH for Long-Term Persistence
Summary Sygnia’s new Operation Highland report describes a China-nexus Velvet Ant intrusion that maintained access inside an internal network for nearly a decade, with forensic artifacts dating back to 2016.…
Critical Splunk Enterprise Flaw Exposes Pre-Auth File Write and RCE Path
Summary Splunk has patched a critical flaw in Splunk Enterprise, tracked as CVE-2026-20253, that allows an unauthenticated network-reachable attacker to create or truncate arbitrary files through a PostgreSQL sidecar endpoint.…
Anthropic Launches Claude Fable 5 and Mythos 5 — First “Mythos-Class” AI Models Go Live With Controversial Cybersecurity Guardrails
Summary Anthropic has officially launched Claude Fable 5, the first publicly available model from its new “Mythos” capability class, with general availability confirmed on June 11, 2026. The model delivers…
Google Releases DiffusionGemma — Open 26B Model That Generates Text 4x Faster Using Diffusion Instead of Autoregression
Summary Google has released DiffusionGemma, an experimental open model that takes a fundamentally different approach to text generation. Instead of the traditional autoregressive method (generating one token at a time),…
OpenAI Makes GPT-5.5 Instant the Default ChatGPT Model — Plus GPT-5.4 Thinking With Integrated Codex
Summary OpenAI has rolled out GPT-5.5 Instant as the new default model for ChatGPT on June 12, 2026, replacing GPT-5.3 Instant. The update promises improved accuracy, clarity, conciseness, image understanding,…
VRChat Data Breach Exposes 2.4 Million User Accounts — Emails, Usernames, and Login History Compromised
Summary VRChat has disclosed a data breach affecting approximately 2.4 million user accounts in the United States. The company discovered unauthorized access to data stored in its cloud environment in…
Novo Nordisk Discloses Cybersecurity Breach — Clinical Trial Patient Data Exfiltrated From Internal Systems
Summary Danish pharmaceutical giant Novo Nordisk has disclosed a cybersecurity breach affecting patient data from some of its clinical trials. The company revealed on June 11, 2026, that attackers gained…