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Learn essential security practices for Next.js applications through a comprehensive 22-minute tutorial covering seven critical security measures. Explore dependency management strategies to avoid vulnerabilities in third-party packages, then master data validation and sanitization techniques to protect against malicious input. Discover proper handling of personally identifiable information (PII) and sensitive data, including secure storage and transmission methods. Understand how to prevent code and data exposure through proper environment variable management, server-only utilities, React's Taint API, and Data Transfer Objects (DTOs). Implement a robust Data Access Layer (DAL) to centralize and secure database interactions. Configure Content Security Policy (CSP) headers to prevent cross-site scripting attacks, set up proper code editor security practices, and implement rate limiting to protect against abuse. Get hands-on experience with security tools including the Arcjet dashboard for comprehensive protection, and learn how to conduct thorough security audits of your Next.js applications.
