keresztdomain
Keresztdomain is a concept in information technology that describes the coordination of systems, data, and services across multiple domain boundaries. In practice, it covers cross-domain data integration, cross-domain identity and access management, and cross-domain service orchestration. The goal is interoperability and controlled collaboration while preserving security, governance, and policy compliance.
The term blends Hungarian terminology with the common IT concept of a domain, and is used primarily
Common applications include federated authentication across business units, data sharing between subsidiaries, and cloud or microservice
Technically, implementations rely on identity standards such as OAuth 2.0, OpenID Connect, and SAML; token technologies
Challenges include security risks from misconfiguration, differences in governance across domains, regulatory constraints, data sovereignty, and