In the dynamic realm of software security, the Java Development Kit (JDK) provides a wealth of underutilized native capabilities. “Maximizing Security with JDK: Understanding Built-in Capabilities,” this presentation, offers an in-depth exploration of JDK’s inherent security features. Focusing on cryptographic strengths like hashing, encryption, and digital signatures, we’ll underscore the benefits of using these built-in functions over external dependencies. A special highlight will be the latest JDK 21 enhancements, including the Key Encapsulation Mechanism (KEM) API, which aligns with NIST’s Post-Quantum Cryptography standards. This session, enhanced with live coding demonstrations, will showcase how JDK’s native features not only simplify development but significantly bolster application security. We aim to empower Java developers to fully leverage JDK’s security offerings for enhanced efficiency, performance, and robust security in their applications.