STOP Making These 6 Next.js Security Mistakes (Security Headers, XSS, server-only etc.)

Securing your Next.js applications, and web applications in general, is one of the most important things you need to master as a developer. The truth is, most people don’t know where to start or what can go wrong, and that leaves their apps vulnerable to serious attacks. In this video I’ll walk you through 6 common security mistakes developers make and show you exactly how to fix them. You’ll learn how to protect your apps from package hijacking, secure them with proper headers, prevent XSS, handle data fetching safely, sanitize inputs correctly, and much more

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Timestamps:
00:00 Intro
01:00 Mistake No. 1: Package Hijacking
07:55 Mistake No. 2: XSS & Sanitization
19:30 Mistake No. 3: Leaking Environment Variables (Taint)
26:00 Mistake No. 4: Data Fetching & DAL
40:00 Mistake No. 5: Multi-Layered Security
45:00 Mistake No. 6: Security Headers (Nosecone)