ZDELab Security Guide

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Lesson 15 min read

Introduction: Why Security Matters

You're shipping fast. Cursor is generating your API routes. v0 is spitting out beautiful components. Replit is deploying your Next.js app to production in minutes. The velocity is incredible—but somewhere in that rush, security often gets left behind.

Here's the thing: AI tools are amazing at generating functional code, but they're not security experts. They'll give you a working authentication flow, but they might forget the security headers. They'll set up your Supabase connection, but they might expose your environment variables. They'll create your API endpoints, but they might skip rate limiting.

This isn't about fear-mongering. It's about being practical. You're building real products that real people will use. A few simple security checks can save you from the kind of headaches that kill momentum.