Insights, guides, and best practices for JavaScript security
The OWASP Top 10 mapped to Node.js and Express backends — with real code examples for each vulnerability, exploitation patterns, and concrete mitigations every Node.js team should have in their audit checklist.
Rate limiting is your first line of defense against brute force attacks, DDoS, and API abuse. Here's how to implement production-grade rate limiting in Node.js and Next.js using Express middleware, Next.js middleware, and Redis-backed sliding windows.
Implementing a production-grade Content Security Policy for React and Next.js applications. Covers nonce-based CSP, strict-dynamic, reporting, eval management, and real-world deployment patterns for 2026.
JWT storage, CSRF protection, session hijacking prevention, and secure authentication patterns for React and Next.js applications. A practical guide for startups building production auth systems.
React's JSX protects against XSS by default, but dangerouslySetInnerHTML, SSR hydration, URL injection, and third-party scripts still leave applications vulnerable. Here's a complete guide to preventing XSS in React applications.
Next.js combines server and client rendering, creating unique attack surfaces. Learn how to secure your App Router app with CSP nonces, middleware guardrails, safe data fetching, and a full checklist.
npm audit is a good start, but it won't protect your Node.js app from real-world supply chain attacks. Here's a complete dependency security strategy with Snyk, Semgrep, and OWASP Dependency-Check.
Learn how to conduct a comprehensive React security audit. Covers XSS prevention, CSP headers, dependency security, OWASP Top 10, and more. Includes a practical checklist.