TL;DR: Claude Code security review caught 4 of 6 security bugs in a small Next.js app. A plain AI prompt and a broader security audit found the same four, proving that one security check can still miss serious vulnerabilities.
Gitleaks found a deleted API key hidden in Git history, while Trivy flagged an outdated Next.js version with a known middleware bypass. All three AI reviews missed these issues.
This guide compares four security approaches and shows how to combine them into three practical levels of protection for AI-built apps.
Results: Claude Code found 4/6 bugs in 41 seconds. The plain prompt matched that score in 36 seconds.
Avoid: Relying on AI code reviews alone to secure your application.
Action: Combine Gitleaks, Trivy, and AI security reviews before deployment.
Table of Contents
Introduction
A simple one-sentence AI prompt caught the same 4 security bugs as Claude Code security review. And a full security audit? It still missed the same 2 vulnerabilities.
That's pretty surprising, especially when AI agents can now build entire apps in minutes. They can write working code while overlooking basic security checks, like making sure users can only access their own company's data.
So I tested 4 security approaches on a Next.js app with 6 deliberate vulnerabilities: free scanners, Claude Code security review, a broader AI security audit, and a plain AI prompt.
The results showed why relying on a single security tool can leave serious gaps.
In this guide, I'll break down what each approach caught, what it missed, and 3 practical levels of security you can set up to protect your AI-built apps before launch.
You’ve reached the locked part! Subscribe to read the rest.
Our Black Friday offer is currently running with 30% OFF. It ends on Nov 29. Then, this biggest deal will disappear FOREVER.
UPGRADEONE LIMITED-TIME OFFER = ALL YOU NEED FOR AI IN 2027:
- 10 on-demand courses covering the 27+ most productive AI tools on the market, with toolkits and over $300,000 worth of exclusive software discounts
- A vibrant network of 300K+ members on Facebook and 3.1K+ active hub participants
- 700+ ready-made AI workflows. We cover all the latest news and tools
- NEW: Ember AI Assistant: Find the guidance you need from AI Fire's growing tutorial knowledge base
- NEW: AI Fire on Udemy: Take your AI skills further with expert-led courses built around our real-world experience
- COMING SOON: Your Next AI Secret Weapon: We're building something BIG behind the scenes. You'll get more sneak peeks as we get closer to the BIG reveal
- Everything above is included the second you join.
