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Learn Lethal Trifecta Guard: from zero to expert, then sell it

No AI background needed. Five levels, each with something to actually do, at your own pace. Tick items as you go (your ticks stay in this browser).

Evidence, proof and selling tools for Lethal Trifecta Guard

Level 1 Beginner: understand it

Untrusted input + private data + a way out = a leak path. The guard blocks the step that completes it.

Think of it like this: A bank vault rule: a visitor, the vault key and an open back door are never allowed in the same room at the same time.

Read the full plain-English explanation: Lethal Trifecta Guard, explained.

Level 2 User: see it work

Run it live: open the live demo. Before each result, guess what will happen. These are checks it must pass:

Level 3 Verifier: prove it yourself

This is the skill that sets you apart: you don't have to believe us, and neither do your customers.

  1. Install Python 3 if you don't have it (python.org/downloads).
  2. Download the kit and unzip it.
  3. Open a terminal in that folder. On Windows, click the folder's address bar, type cmd and press Enter. On a Mac, right-click the folder and choose New Terminal at Folder.
  4. Run python3 verify.py (on Windows, python verify.py). It checks the seal without the internet.
  5. Run python3 verify.py --live. It repeats every check from your own computer.
  6. Try to cheat it: open transcript.json in a text editor, change one character, save, and run python3 verify.py again. It must now say FAIL. Unzip a fresh copy afterward.

Level 4 Expert: know the edges

An expert knows what a product does not do, and says it first. That is what makes a buyer trust you.

You can say

Never say

Read the questions real buyers send, with honest answers: answers to buyer questions.

Test yourself (click a question to see the answer)

What are the three legs?

Untrusted content, private data, a way out.

Is an internal report to your own domain blocked?

No.

In the live check "A public GitHub issue leaks a private repository", what answer must come back, and why?

"LEAK_PATH_BLOCKED". Modeled on a 2025 disclosure about a GitHub MCP server.

In the live check "An email turns an image link into a leak", what answer must come back, and why?

"LEAK_PATH_BLOCKED". Modeled on a 2025 vulnerability in an office AI assistant (CVE-2025-32711).

In the live check "One database tool holds all three legs", what answer must come back, and why?

"LEAK_PATH_BLOCKED". Modeled on a 2025 database-MCP support-ticket leak.

Does a passing kit prove the product is safe for every possible input?

No. It proves what the live product answered to the inputs listed in the kit, and lets anyone check that again.

Has an independent party audited or certified this product?

No. No third-party audit is complete and no certification is held. Say so if asked.

Want a formal study path? The CAIN Academy has courses and exams. Finishing this page is your own practice; it is not a qualification or certification.

Level 5 Seller: put it in front of a customer

  1. Copy, paste, send: the shortest route, no technical skill needed.
  2. Who buys it and where to find them.
  3. The sales conversation, then the offer and the close.
  4. The rules: read these before your first message.
  5. Selling tools with this product's evidence built in: pitch, emails, call script, objection answers, one-pager.

About money: your share is agreed in writing with FIRME AI CORPORATION before your first message (email vincent@firmeai.com). Nothing here promises income. Most messages get no reply; that is normal.