Publicly defined technical interfaces that let different systems interact without relying on one vendor’s private implementation. For identity security, open standards support federation, interoperability, and more reliable governance because they reduce hidden dependency on a single platform boundary.
Expanded Definition
Open standards are publicly documented technical specifications that allow systems, identities, and security tools to interoperate without dependence on a single vendor’s private protocol. In NHI security, the term usually includes identity federation, token formats, entitlement exchange, and API-authenticated workflows. The practical value is less about openness as a principle and more about reducing hidden coupling across cloud, SaaS, CI/CD, and agentic systems.
Definitions vary across vendors when they call a proprietary wrapper “open” simply because it exposes an API. In governance terms, an open standard should be inspectable, implementable by multiple parties, and stable enough to support lifecycle controls such as provisioning, rotation, revocation, and audit. That is why NHI teams often compare implementation choices against public references such as NIST Cybersecurity Framework 2.0 and the standards discussion in Ultimate Guide to NHIs — Standards.
The most common misapplication is treating a proprietary interface with public documentation as an open standard, which occurs when teams cannot move identity workflows between platforms without redesign.
Examples and Use Cases
Implementing open standards rigorously often introduces compatibility and governance overhead, requiring organisations to weigh portability and vendor independence against the cost of integration discipline.
- Federating workload identities across cloud services using a standard token or trust model so that service accounts do not depend on one platform’s native credential format.
- Using open API authentication patterns to let agents, CI/CD jobs, and automation tools request access in a predictable way across environments.
- Adopting standard identity lifecycle workflows so rotation and revocation can be enforced consistently instead of rebuilt for each application boundary.
- Reviewing implementation guidance in Ultimate Guide to NHIs — Standards alongside NIST Cybersecurity Framework 2.0 to ensure interoperability supports governance, not just integration.
- Exchanging identity metadata between platforms so that security teams can preserve auditability during platform migration, M&A integration, or multi-cloud redesign.
In mature NHI programmes, open standards are most valuable when they let one control plane verify identities created elsewhere without turning every vendor boundary into a custom trust exception.
Why It Matters in NHI Security
Open standards reduce concentration risk in the identity layer, which is critical because NHI sprawl is already extreme. NHI Mgmt Group reports that NHIs outnumber human identities by 25x to 50x in modern enterprises, and 97% of NHIs carry excessive privileges. When identity flows are locked to one vendor’s proprietary model, offboarding, rotation, and incident response become harder to automate and harder to prove.
That matters because standards-based controls support portability of trust, not just portability of data. They help security teams align with frameworks such as NIST Cybersecurity Framework 2.0 while also making the operational guidance in Ultimate Guide to NHIs — Standards easier to apply across tools. Without open standards, organisations often inherit brittle integrations that delay revocation and obscure where a credential can still be used.
Organisations typically encounter the consequence only after a platform migration, breach, or emergency revocation event, at which point open standards become operationally unavoidable to address.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | GV.1 | Open standards support governance and transparency across identity tooling. |
| NIST Zero Trust (SP 800-207) | Zero Trust relies on standard trust signals and interoperable policy enforcement. | |
| OWASP Non-Human Identity Top 10 | NHI-01 | NHI governance needs clear, standardised interfaces for lifecycle control. |
Use open standards to document trusted identity interfaces and reduce opaque platform dependency.
Related resources from NHI Mgmt Group
- Should organisations adopt open standards for authorization now?
- Why do open communication standards create new access governance challenges?
- How should security teams govern device-bound payment credentials in open finance?
- Should organisations use new AI-specific identity standards or existing ones?
