Definition
Identity security encompasses the processes, policies, and technologies used to manage and protect digital identities throughout their lifecycle. It ensures that only authorized individuals or systems can access specific resources by verifying their identity and granting appropriate permissions. This is crucial for preventing unauthorized access, data breaches, and maintaining compliance with regulations. For example, multi-factor authentication adds a layer of security by requiring more than just a password to log in. Unlike access control which focuses on what users can do, identity security focuses on verifying who the user is. Identity security principles are foundational to certifications like CompTIA Security+ and CySA+, as well as the CISSP exam.