In today's digital world, securing communication between clients and servers is more critical than ever. Whether you're running an e-commerce site or managing a microservices architecture, understanding the nuances of SSL, TLS, and mTLS is essential for ensuring the confidentiality and integrity of your data. But what exactly differentiates these protocols, and why should you care? This article will take you on a deep dive into the distinctions between SSL, TLS, and mTLS, providing code examples, demo results, and clear explanations to help you secure your web applications effectively.