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App Security for Vibe Coders
This book is 100% completeLast updated on 2026-10-20
Your AI builder made an app that works. This book shows you whether it's also leaking your API keys, your users' data or your source code, and gives you copy-paste prompts so the same AI can fix it before a stranger finds it.
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About
About the Book
AI builders can take an idea to a live app in an afternoon. They write code that works, but not always code that's safe on the public internet.
This 44-page, 18-chapter guide covers the places vibe-coded apps leak most: API keys in the frontend, Supabase tables without Row Level Security, exposed .env files, .git folders and source maps, debug pages, admin checks that only live in the UI, and payment webhooks that accept anything.
Each chapter explains the problem in plain English and gives you copy-paste prompts to hand back to the same AI that wrote the code. It ends with a pre-launch checklist and a scan, fix and prove walkthrough.
Written by Justin Farmer, who builds ShipLatch, a security scanner for AI-built apps.
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About the Author
Justin Farmer
About the author
I'm Justin Farmer, and I've worked in security and software for more than 20 years.
I hold a master's degree in Information Security and Data Assurance. I founded Kernel, Inc., a cybersecurity consulting firm that served government and critical-infrastructure clients, and through its subsidiary Neo Cybersecurity I designed and ran an automated penetration-testing platform for small businesses. My job there was the same one this book does: find what's exposed, then explain the fix in plain language to people who aren't security engineers. I've also spent nine years as a senior systems engineer at T-Mobile, and I've taught information systems at the university level.
Now I run an AI Coaching/Consulting agency and build ShipLatch, a scanner for apps made with Lovable, Bolt, Cursor and Replit. The tools are new, but the mistakes aren't: keys in the browser, databases that trust anyone, files that should never have shipped. This book shows you where to look and how to fix each one with prompts you can hand back to your AI.
Justin Farmer
Raleigh, NC
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