A Secure Element is a tamper-resistant hardware component designed to securely store sensitive information, such as cryptographic keys and personal data. It is commonly used in devices like smartphones, payment cards, and wearables to enhance security and protect against unauthorized access. These elements provide a safe environment for executing secure transactions and managing digital identities. By isolating sensitive operations from the main operating system, a Secure Element helps prevent attacks and ensures that data remains confidential, making it essential for applications like mobile payments and secure communications.