Dive deep into NoSQL injection  protection techniques for Node.js applications through hands-on  implementations. Learn to prevent authentication bypass, query operator  injection, data exfiltration, and privilege escalation that compromise  application security. Explore input validation middleware, password hashing,  MongoDB query sanitization, and role-based access control patterns. Develop  skills to create resilient full-stack applications that properly validate,  sanitize, and secure database queries across modern web environments.