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NIST announces the release of Special Publication (SP) 800-207A, A Zero Trust Architecture Model for Access Control in Cloud-Native Applications in Multi-Location Environments.
Enterprise application environments consist of geographically distributed and loosely coupled microservices that span multiple cloud and on-premises environments. They are accessed by a userbase from different locations through different devices. This scenario calls for establishing trust in all enterprise access entities, data sources, and computing services through secure communication and the validation of access policies.
Zero trust architecture (ZTA) and the principles on which it is built have been accepted as the state of practice for obtaining necessary security assurances, often enabled by an integrated application service infrastructure, such as a service mesh. ZTA can only be realized through a comprehensive policy framework that dynamically governs the authentication and authorization of all entities through status assessments (e.g., user, service, and requested resource). This guidance recommends: