🧰 Mythos

The items that name it 50

• Why AI Models Cheat: Reward Hacking, Explained
  articleas classification.key entities2026-10-31
• Was I wrong about open models & cyber risks?
  articleas classification.key entities2026-10-30
• How Anthropic ships Claude with Claude: Separating the Brain from the Hands
  talkas classification.key entities2026-10-27
• Mythos 5 Ignored Real-World Harm in July Attack
  articleas classification.key entities2026-10-26
• Podcast: Kimi K3.1 Pro, the new cyber reality, and Muse musings
  talkas classification.key entities2026-10-25
• [AINews] Kimi 3.1 Pro 104BA-2.8T: Fable-5.1-Class Open Weights narrows Closed-AI lead to 1 month... and Pro Highspeed API with 2-3× speed
  articleas classification.key entities2026-10-24
• Today's PHP security release, and how we're strengthening security
  articleas classification.key entities2026-10-21
• There's only so much code: the rise in vulnerability numbers
  articleas classification.key entities2026-10-20
• Hackers Jailbreak iPhone 18 Pro on Stage, and It Survives a Reboot
  articleas classification.key entities2026-10-16
• India's Cyber Agency Says AI Agents Read Confidential Business Records Without Authorization
  articleas classification.key entities2026-10-16
• In Other News: ICS-Sniper Attack, Hacking XWorm Malware Operators, $250k Chrome Exploit
  articleas classification.key entities2026-10-16
• Anthropic Gives Open Source Maintainers a Fast Track to Mythos Vulnerability Findings
  articleas classification.key entities2026-10-15
• Godfather of AI and 400 Scientists Want AI Models Cut Off From the Internet
  articleas classification.key entities2026-10-14
• Anthropic Introduces 3-Tier Cyber Verification Program for AI Access
  articleas classification.key entities2026-10-07
• Frontier models found the vulnerabilities. Only the attacker found the chains.
  articleas classification.key entities2026-10-07
• The Cyber Risk Discourse is Broken
  articleas classification.key entities2026-10-06
• Expanding the Cyber Verification Program
  articleas classification.key entities2026-10-06
• Gemini 4 Is Here, and Google’s Flagship Tops All Other AI Models on Cybersecurity
  articleas classification.key entities2026-09-30
• CVE-2026-61500: Rejetto HFS Session Forgery Vulnerability (found via Anthropic Mythos)
  writeupas classification.key entities2026-09-30
• 2026 in LLMs (so far)
  talkas classification.key entities2026-09-27
• Grok 4.7 for Offensive Security: Orchestration Matters | XBOW
  articleas classification.key entities2026-09-21
• [tl;dr sec] #345 - Bug Rumors → Exploits, Version Control DFIR, Agentic Worms
  articleas classification.key entities2026-09-10
• Machine Speed is a lie: stop trying to fight AI with AI
  articleas classification.key entities2026-09-03
• Rumour Is the Exploit — AI agents collapse time-to-exploit to near-zero
  articleas tools2026-08-22It is written here as Mythos (frontier agent the author lacks access to).

  frontier agent the author lacks access to

• What is CVE remediation in 2026?
  articleas classification.key entities2026-08-21
• Have We Seen an Acceleration in Discoveries?
  articleas classification.key entities2026-08-14
• XBOW: Engineering the Impossible
  articleas classification.key entities2026-08-13
• [tl;dr sec] #340 - Anthropic and Meta Agents be Hackin', Agentic Incident Response Notebooks, Figma's AI Code Scanning
  articleas classification.key entities2026-08-07
• Awesome Offensive AI Agentic Landscape
  repoas classification.key entities2026-08-01
• AI-Generated Malware and the Software Supply Chain | Blog | Endor Labs
  articleas tools2026-07-29

  Frontier AI model raising concern around attacker leverage; governments have restricted availability of such tools

• How AI guardrails are impeding the work of offensive cybersecurity researchers | TechCrunch
  articleas affected products2026-07-24It is written here as Mythos (Anthropic AI model).

  Subject to U.S. government export control restrictions in June, prompted at least in part by a report claiming it was possible to bypass guardrails preventing use for building and executing malicious cyberattacks; export controls on Mythos 5 have since been lifted but reintroduced only to vetted U.S

• XBOW: The Rise of Affordable Models
  articleas tools2026-07-16

  Frontier AI model (Anthropic) noted as the strongest performer in XBOW's agentic cybersecurity testing

• XBOW: Grok 4.5 Poised To Take Over the Middle of the AI Security Market
  articleas tools2026-07-16

  AI model compared for offensive security performance, strong on shorter traces and early progress

• Benchmarking Endor Labs AI SAST: 2.6x more real vulnerabilities found than frontier models | Blog | Endor Labs
  articleas classification.key entities2026-07-06
• When a Government Pulls an AI Model: What the Fable 5 and Mythos 5 Suspension Means for Security Teams
  articleas classification.key entities2026-06-14
• Full Fathom Five: The context of Anthropic’s Mythos-class public release
  articleas classification.key entities2026-06-13
• Endor Labs: AI AppSec Agents Cost 12x More Without Pre-Computed Security Context
  articleas affected products2026-06-11

  AI coding agent security tool referenced in press coverage as part of the trend toward AI replacing appsec

• Defending Code Reference Harness
  repoas classification.key entities2026-06-05
• 21 Zero-Days in FFmpeg | depthfirst
  writeupas tools2026-06-02It is written here as Mythos (Anthropic).

  Anthropic model used to scan FFmpeg and find security issues; cited as prior work, reported cost about $10k

• Move over, Mythos. Here comes... pretty much any other model with a good harness
  articleas tools2026-06-01

  AI model used for finding vulnerabilities, constructing exploit chains, and generating proofs of concept; benchmarked as among the top models for reasoning and cyber capability.

• Hard Truths: You've Built a Security Stack. Have You Built a False Sense of Security? | Tanya Janca
  videoas classification.technologies2026-05-27It is written here as Mythos: Frontier AI vulnerability analysis model by Anthropic functioning as agentic static code analysis.
• Project Glasswing: Initial Update (Anthropic)
  articleas classification.key entities2026-05-27
• GPT-5.5 Vulnerability Detection Eval
  articleas classification.key entities2026-05-13
• Mythos AI Security Testing
  articleas tools2026-05-12

  Anthropic AI model for finding security flaws in source code; used to scan curl's codebase (178K lines in src/ and lib/) on 2026-05-06, producing a report of five claimed 'confirmed' vulnerabilities (later reduced to one) and about twenty other bugs

• IronCurtain: Secure AI Agent Runtime
  writeupas classification.key entities2026-05-07
• XBOW: GPT-5.5 and Opus 4.7 in Offensive Security Workflows
  writeupas tools2026-05-06

  Anthropic model referenced as a comparable step-change vulnerability detection model, described as available only to a select few

• dfbench — depthfirst
  articleas classification.key entities
• Weekly Research Brief: PHP Vulnerability; Objections to OKX-ICE’s Stock Tokenization; Solana Alpenglow Ships
  articleas classification.key entities
• Security in the LLM Age - Greg Kroah-Hartman
  videoas classification.technologiesIt is written here as Mythos: Autonomous AI bug-hunting agent developed by Anthropic.
• AWS, Google, and Vercel Agent Flaws Let Attackers Trigger Tools Without Running the Model
  articleas classification.key entities