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3 minAI SecurityMarch 19, 2026

AI Wrote Your Code. Now Secure It.

You used Cursor, Claude Code, or Bolt to build your app. It works. You shipped fast. But AI coding tools optimize for functionality, not security.

RM

Ryan Macomber

Founder, VibeSec Advisory

The situation

You used Cursor, Claude Code, or Bolt to build your app. It works. You shipped fast.

But AI coding tools optimize for functionality, not security. They will happily generate code with XSS vulnerabilities, missing auth checks, and exposed APIs.

Why it matters

AI-built applications are becoming prime targets because:

  • They often skip security reviews in favor of speed
  • Generated code may include deprecated or vulnerable patterns
  • AI tools do not know your business logic or security requirements
  • Many are deployed without basic security headers

Attackers are catching on.

The checklist

Before your next deploy, verify these 5 things:

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1. Security headers are set

X-Frame-Options: DENY
Content-Security-Policy: default-src 'self'
Strict-Transport-Security: max-age=31536000

2. User input is sanitized

AI often generates code that trusts user input. It should not.

3. Auth is not just on the frontend

Check your API routes. Are they protected or can anyone call them?

4. Secrets are not in the repo

Search your codebase for api_key, secret, password. Move anything you find to environment variables.

5. Dependencies are up to date

Run npm audit or pnpm audit. Fix what you can.

The reality

AI is not going away. Neither are attackers.

The faster you ship, the faster you need to secure.


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