spring boot 24 Multifactor Authentication Email OTP with Redis Part 4

🔐 Want to make your Spring Boot application secure and production-ready with Multi-Factor Authentication (MFA)? In this video, I’ll guide you through implementing Email OTP-based MFA using Redis for fast performance, while adhering to best practices for production deployment.

🌟 What You’ll Learn:
✅ How to implement secure Email OTP-based Authentication.
✅ Setting up Redis as a fast and efficient in-memory OTP store.
✅ Optimizing performance and ensuring reliability in a production environment.
✅ Following security best practices like OTP expiry, retry limits, and account blocking.
✅ Tips to handle edge cases and improve user experience.

✨ Key Features Covered:
💡 Step-by-Step Code Implementation – Easy to follow for developers of all levels.
⚡ Performance Optimizations – Fast OTP validation with Redis caching.
🔒 Security Best Practices – OTP expiration, retry attempts, and account blocking.
🛠️ Production-Ready Code – Scalable and clean architecture.

🚀 Highlights:
1️⃣ Integrating JavaMailSender for sending OTP via Email.
2️⃣ Using Redis to store and validate OTPs efficiently.
3️⃣ Implementing Rate Limiting for OTP requests.
4️⃣ Blocking accounts after exceeding maximum OTP attempts.
5️⃣ Writing clean, modular, and reusable code for real-world applications.
Link to otp-template.html code: https://docs.google.com/document/d/19...