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HIGH Fireworks AI Breach Exposes Notion AI Chat Transcripts // FIRST LOOK OpenAI Launches AI-Powered Security Sprint with Cathedral Systems // FIRST LOOK Google DeepMind AI Agents Accelerate Cryptographic Vulnerability Research // HIGH BOSSAI AI Agents Used to Breach Taipei Emergency Dispatch Systems // FIRST LOOK NVIDIA OpenShell Brings Sandboxed Runtime to Secure AI Agents // FIRST LOOK Axiom Math Launches Formally Verified AI Math Foundation in Lean // HIGH ChatGPT Lockdown Mode Bypassed to Exfiltrate Chats Silently // FIRST LOOK Microsoft Ships Dynamic Permissions and Execution Containers for AI Agents // CRITICAL ARTEX Agentic Hacking Platform Drives Autonomous RCE Attacks // FIRST LOOK OpenAI Partners with Hacktron to Find Vulnerabilities in AI Systems //
RED-TEAMING

Red-Teaming

18 reports
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Claude Fable 5 Jailbreak Attacks Bypass Fallback Defense

Claude Fable 5 Jailbreak Attacks Bypass Fallback Defense

ATLAS OWASP MEDIUM Moderate risk · Monitor closely ▲ 7.2 SecurityWeek

Anthropic has released Claude Fable 5, a high-capability 'Mythos-class' model that automatically falls back to a less capable model (Claude Opus 4.8) when queries touch sensitive domains like cybersecurity and biology. The company conducted over 1,000 hours of external red-teaming with no universal jailbreaks discovered, though it openly acknowledges financially motivated adversaries will attempt to circumvent these controls. Trusted cybersecurity partners under Project Glasswing receive elevated access to the full Mythos 5 capabilities, raising questions about insider risk and tiered trust model security.

Sweet Security Launches Sweet Attack Agentic AI Red Teaming

Sweet Security Launches Sweet Attack Agentic AI Red Teaming

ATLAS OWASP MEDIUM Moderate risk · Monitor closely ▲ 7.2 SecurityWeek

Sweet Security has launched 'Sweet Attack', a continuous agentic AI red teaming platform designed to counter the growing asymmetry between AI-assisted attackers and human defenders — a tipping point the industry has termed the 'Mythos Moment'. The platform differentiates itself by grounding frontier model reasoning in live runtime telemetry from each customer's own environment, including topology, identity paths, and unencrypted Layer 7 exposure, to identify genuinely exploitable attack chains rather than theoretical ones. The development signals a broader industry shift toward autonomous, environment-aware AI agents as a necessary component of modern security operations.

OpenAI Daybreak Vulnerability Detection Enables LLM Jailbreak

OpenAI Daybreak Vulnerability Detection Enables LLM Jailbreak

ATLAS OWASP MEDIUM Moderate risk · Monitor closely ▲ 7.2 The Hacker News

OpenAI has launched Daybreak, an AI-powered cybersecurity platform combining GPT-5.5 variants and Codex Security to automate vulnerability detection, threat modelling, and patch validation for enterprise codebases. The initiative introduces a tiered model access structure — including a permissive 'GPT-5.5-Cyber' for red teaming — raising questions about dual-use risk and model misuse if access controls are circumvented. The rollout also contextualises a broader industry tension: AI is accelerating vulnerability discovery faster than defenders can remediate, contributing to triage fatigue and hallucinated bug reports.

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