Classification in cybersecurity refers to the process of assigning a security level to data, hardware, or other assets based on their sensitivity and importance. This process helps organizations determine how information should be handled, stored, and protected. Common classification levels include public, internal, confidential, and highly confidential. Proper classification ensures that sensitive data receives the appropriate security controls, reducing the risk of unauthorized access or data breaches. It is a foundational step in building an effective information security management system and complying with regulatory requirements.