THOR Collective Radio
📝 Episode Summary Mythos pulled us out of sabbatical. After a few months heads-down on conferences, work, and shipping, the THOR Collective is back with a special episode dedicated to cutting through the Mythos hype cycle. Lauren and Sydney are joined by Trent Lo (aka Surbo), Principal Security Researcher at Marsh and longtime adversary-in-chief from the CenturyLink days. Trent lives on both sides of the fence — offense and defense — which makes him exactly the right person to help us answer the question the whole industry has been screaming about since Anthropic’s announcement: is this real, or is this marketing? The crew walks through what Mythos and Glasswing actually were (versus the cyber-nuclear-war headlines), where AI genuinely changes the game for attackers, and where defenders still hold the line. The throughline: behaviors still win. AI changes tempo, not fundamentals. There is still a human pointing the tool, and that intent — not the model — is what matters. Trent’s take is measured, grounded, and refreshingly free of doom: nation-states already have this capability and have for a while, the have-and-have-nots gap is going to widen, and the smartest move right now is to get your patching program in order before the wave of AI-found vulnerabilities crests. Sydney walks through three new HEARTH features — What Can I Hunt, the Coverage Map, and the Context Graph — and recaps ATHF for anyone who missed her SANS AI Summit talk. Lauren teases her Vercel/Context.ai infostealer-to-SaaS hunt guide. Then the conversation pivots to defense at machine scale: how the well-resourced orgs should be thinking, what the under-resourced shops can actually do with Gemma 4 running locally and Copilot bundled in their E5 license, and why vulnerability programs are about to become the most important muscle on the team. We close with a Myth or Signal rapid round (AI SOC replacing analysts? threat hunting copilots? baselining? autonomous pentest? AI-generated malware?) and conference plans for the rest of the year. ⏱️ Episode Breakdown * 00:23 – Intro and welcome back from sabbatical * 02:06 – Guest intro: Trent Lo (Surbo), Principal Security Researcher at Marsh * 04:24 – THOR updates: new HEARTH features and ATHF recap * 07:41 – April Dispatch posts: Vercel infostealer-to-SaaS hunt + Mythos Won’t Kill Threat Hunting * 10:17 – What Mythos and Glasswing actually were vs. the marketing hype * 15:37 – Where humans still win: judgment, intent, and what “agentic” really means * 21:43 – What actually worries us about Mythos (hint: it’s the keyboard, not the model) * 25:14 – Defense in the open and the widening have-and-have-nots gap * 27:52 – Closed source vs. open source post-Mythos, and the CVE explosion problem * 34:25 – How defenders can actually use AI: imposter syndrome, IR, and machine-scale hunting * 39:56 – Defense at machine scale: resourced vs. under-resourced playbooks * 46:46 – What a two-person team should prioritize (spoiler: patch your shit) * 51:13 – ⚡ Myth or Signal rapid round * 53:41 – Plugs, conferences, and Allbirds becoming an AI company * 56:32 – Happy thrunting 🎤 Hosts & Guest Lauren Proehl (Host) — Manager of the group, cautious optimist, and the person who still has receipts on Trent from CenturyLink days. Sydney Marrone (Host) — Now officially a manager (welcome to the dark side). Built ATHF, shipped three new HEARTH features this cycle, and is the reason 90% of you have a starting point for agentic threat hunting. Trent Lo / Surbo (Guest) — Principal Security Researcher at Marsh. Self-described professional hand grenade thrower who also jumps on the grenades. * LinkedIn: trentlo [https://www.linkedin.com/in/trentlo/] * X: @surbo [https://x.com/surbo] 🔗 Resources & Mentions April Dispatch Posts * Mythos Won’t Kill Threat Hunting. It’ll Prove We Were Right. [https://dispatch.thorcollective.com/p/mythos-wont-kill-threat-hunting] by Lauren Proehl & Sydney Marrone — the editorial thesis driving this episode * Hunting the Infostealer-to-SaaS Pipeline [https://dispatch.thorcollective.com/p/hunting-the-infostealer-to-saas-pipeline] by Lauren Proehl — practitioner hunt guide on OAuth abuse and lateral movement via over-permissioned SaaS apps, using the Vercel/Context.ai breach as a case study Mythos & Glasswing — Primary Sources * Claude Mythos Preview [https://red.anthropic.com/2026/mythos-preview/] — Anthropic’s technical writeup of the model’s vulnerability discovery capabilities * Project Glasswing [https://www.anthropic.com/project/glasswing] — the coordinated disclosure consortium (AWS, Cisco, Google, and others) * Bruce Schneier: On Mythos Preview and Project Glasswing [https://www.schneier.com/blog/archives/2026/04/on-anthropics-mythos-preview-and-project-glasswing.html] — a healthy counterweight to the breathless coverage THOR Collective Tools & Frameworks * HEARTH [https://hearth.thorcollective.com/] — the community hypothesis library. Three new features: What Can I Hunt (pick your data sources, get matched hypotheses), Coverage Map (HEARTH hypotheses linked to MITRE ATT&CK), and Context Graph (adds threat actors and campaigns to the coverage map to surface gaps). Source on GitHub [https://github.com/THORCollective/HEARTH]. * ATHF (Agentic Threat Hunting Framework) [https://github.com/Nebulock-Inc/agentic-threat-hunting-framework] — Sydney’s open-source framework. Maturity model from manual to multi-agent, LOCK pattern, MCP server, AI assistant. Drop it into Cursor or Claude Code. Watch Sydney’s SANS AI Summit talk [https://www.sans.org/cyber-security-training-events/ai-summit-2026]“Designing AI-Assisted Threat Hunting That Remembers” [https://www.sans.org/cyber-security-training-events/ai-summit-2026] for the walkthrough. Other Mentions * AISLE [https://aisle.com/] — the autonomous vulnerability research team that found 12 of 12 OpenSSL CVEs [https://aisle.com/blog/aisle-discovered-12-out-of-12-openssl-vulnerabilities] in January (covered in our January episode), and 5 of 7 in the April release [https://aisle.com/blog/aisle-uncovered-5-of-7-openssl-vulnerabilities-in-the-april-2026-release]. Their post-Mythos analysis, AI Cybersecurity After Mythos: The Jagged Frontier [https://aisle.com/blog/ai-cybersecurity-after-mythos-the-jagged-frontier], is directly relevant to Trent’s point about another company quietly doing this work for less money. Give credit for what AISLE actually did without conflating it with Mythos. * Gemma 4 [https://deepmind.google/models/gemma/gemma-4/] — Google’s most capable open model, released April 2 under Apache 2.0 [https://blog.google/innovation-and-ai/technology/developers-tools/gemma-4/]. Lauren is running it locally. Trent’s tip: jumpstart prompts here before burning real API tokens. * Allbirds → NewBird AI [https://techcrunch.com/2026/04/15/after-sale-of-its-shoe-business-allbirds-pivots-to-ai/] — yes, the shoe company. Sold its footwear assets for $39M and pivoted to GPU-as-a-Service. We’re as confused as you are. 📢 Call to Action * Read the April Mythos post — and pass it to anyone in your org panicking about cyber-nuclear war * Check out the new HEARTH features at hearth.thorcollective.com [https://hearth.thorcollective.com/] — start with What Can I Hunt * Fork ATHF on GitHub [https://github.com/Nebulock-Inc/agentic-threat-hunting-framework] — start at Level 1 (one hunt in LOCK format) and grow from there * Fix your patching program — the most boring, most important investment you’ll make this year * Run Gemma 4 locally [https://deepmind.google/models/gemma/gemma-4/] — get your reps in before you burn real API tokens * Catch us on the conference circuit: * Lauren at the CrowdTour in New York * Trent at NCFTA Pittsburgh and Zenith * Antisyphon Threat Hunting Summit [https://www.antisyphontraining.com/event/threat-hunting-summit/] — virtual and free, June 17, 2026 * Sydney: Avoiding Hunt Amnesia: Building a Memory Your AI Can Use [https://www.antisyphontraining.com/event/threat-hunting-summit-talk-avoiding-hunt-amnesia-building-a-memory-your-ai-can-use/] — 12:00 PM ET * Lauren: Fast-track Reports into Ready-Made Hypotheses with AI [https://www.antisyphontraining.com/event/threat-hunting-summit-talk-fast-track-reports-into-ready-made-hypotheses-with-ai/] — 3:00 PM ET * Everyone at Black Hat and DEF CON * Write for THOR Collective — first-time publishers, up-and-coming voices, builders with something to share: come find us 📬 Connect with THOR Collective 🗣️ Social Media * Twitter/X: @THOR_Collective [https://x.com/THOR_Collective] * LinkedIn: THOR Collective [https://www.linkedin.com/company/thorcollective] * BlueSky: @thorcollective [https://bsky.app/profile/thorcollective.bsky.social] 📧 Contact Reach out through any social channel for guest post opportunities, collaborations, or to tell us what you’re building. 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