Asymmetric Key Encryption is a method of securing data using two different keys: a public key and a private key. The public key is shared openly and can be used by anyone to encrypt messages. However, only the owner of the private key can decrypt these messages, ensuring that only the intended recipient can read the information. This encryption technique is widely used in various applications, including secure online communications and digital signatures. It enhances security by allowing users to exchange sensitive information without needing to share a secret key, making it a fundamental component of modern cybersecurity practices.