Dive deep into Primary Key Insecure Direct Object Reference (IDOR) protection techniques for TypeScript applications through hands-on implementations. Learn to prevent unauthorized data access, privilege escalation, and information exposure by manipulating sequential database identifiers that compromise application security. Explore access control enforcement, JWT and session-based authentication, indirect reference strategies like UUIDs, and secure API design patterns. Develop skills to create resilient web applications that properly authenticate, authorize, and control access to resources using best practices for IDOR prevention in TypeScript environments.