Which technology allows for identity information portability across different security domains?

Federation of Identity Management (FIdM) facilitates the portability of identity information across different security domains by allowing various organizations or systems to share user authentication and authorization data without requiring multiple logins for each domain. This technology enables a seamless user experience while maintaining security through trusted relationships between different identity providers and service providers.

In a federated identity model, a user can authenticate with one identity provider and gain access to resources across multiple interconnected systems or domains. This is particularly valuable for organizations that partner with other entities or those utilizing cloud services, as users can retain their identity across different environments without the need for redundant user accounts.

Technologies such as single sign-on (SSO) are common in federated identity systems, enhancing convenience and security by reducing the number of credentials users must manage.

Other options do not provide the same level of identity portability across different security domains. Cloud to On-Premise Connections focus more on data and infrastructure connectivity rather than identity management. A Zero Trust Policy is a security framework emphasizing strict verification without assuming trust, and it does not specifically address identity information portability. Network Partitioning involves segmenting networks to enhance security but does not deal with the transfer or sharing of identity information between systems.