Federated access is a cybersecurity approach that enables users to access multiple, separate applications or systems using a single set of credentials, typically managed by a trusted identity provider. This system streamlines authentication processes by establishing trust relationships between organizations or services, allowing users to move seamlessly between platforms without needing to remember multiple usernames and passwords. Federated access enhances security by reducing password fatigue and centralizing identity management, while also improving user experience. It is commonly used in enterprise environments, cloud services, and educational institutions, supporting standards such as SAML or OAuth for secure information exchange and authentication across domains.