Live-fire investigation workshops
Investigate a real breach. Then find it before it happens.
Every workshop below is free and open-source, always — the exercise, the evidence, the wiki, no login, no paywall. An AI agent, armed with the open-source Anthropic Cybersecurity Skills library, does the actual investigation while you drive and check its work. What's for sale is a live seat in the room — see how that works below.
/casky-workshops
Workshops
TollBooth / OpenDoor
A web server leaked AWS credentials through SSRF. Investigate the breach (TollBooth), then audit the configs that caused it (OpenDoor). ~20 min each, free to run yourself.
DFIR · Phishing → AD domain compromiseTailgate / GuestList
A phishing email leads to lateral movement and a full Kerberoasting domain compromise — a 3-act kill chain. Then audit the email/network/AD hygiene that let it happen (GuestList). ~25 min each, free to run yourself.
AppSec · Vibe-coded app breachFastLane / SpeedBump
"The Vibe Coding Security Top 10 Gotchas" — a vibe-coded SaaS app breached through a real, sourced pattern (RLS misconfig, leaked secrets, IDOR, slopsquatting). Then audit it before it ships (SpeedBump). ~25 min each, free to run yourself.
Which path do I run?
Every workshop can be driven two different ways. Pick whichever matches today's room setup — your facilitator will tell you which, but here's the difference:
| Section 1 — Kali + Claude Code | Section 2 — Casky Box | |
|---|---|---|
| Skill selection | 10 hand-picked skills, symlinked per laptop | Auto-classified from all 818 skills, per investigation |
| Agent runtime | Claude Code installed per laptop | One shared casky-runner container |
| Verification | verify.sh — raw grep/jq checks on the data | [VERIFIED] transcript per step — did the agent actually run the assigned skill's script |
| Output | Cheat-sheet answer pages | Structured plan → findings → CISO-style consolidated report |
| Reset between attendees | ./reset.sh (<10s) | Each investigation run is already fresh |
Each workshop's own Setup page has the exact steps — do that first, before opening either scenario page. Every setup has been run end-to-end for real before being written down, not just described.
Skill-focused workshops
A separate, lighter series: each one is built around a single skill from the Anthropic Cybersecurity Skills library, exercised end-to-end against one scenario — no reactive/proactive pair, no Casky Box section, just one skill and one focused exercise.
How this works
Every exercise here — the scenario, the evidence, the wiki, the scripts — is free and open-source in this repo, permanently. What's for sale is live delivery: a seat in a real session, taught in person or virtual, working through the material with an instructor and a cohort. A short free "Lightning Lesson" runs periodically as a preview of the format before any paid session — same content, shorter and live.
| Tier | What it is | Price |
|---|---|---|
| Run it yourself | Everything on this site — the full exercise, self-guided | Free, always |
| Lightning Lesson | A short live preview session | Free |
| Full session | The complete workshop, taught live, in-person or virtual | Paid — dates announced per workshop |
Authorized & lawful use only. All data in every scenario is synthetic and self-contained — no live systems are touched. Built on the open-source Anthropic Cybersecurity Skills library (Apache-2.0); not affiliated with Anthropic PBC. TollBooth/OpenDoor's source data is trimmed from BHUSA-Anthropic-CyberSecurity-Skills. Tailgate/GuestList and FastLane/SpeedBump feature entirely fictional companies and, where referenced, real publicly-documented incidents (CVE-2025-48757, the Moltbook breach, etc.) — cited for accuracy, not affiliated with or endorsed by those companies.