A model where the core product code is openly available while commercial capabilities, support, or hosting may sit around it. In identity infrastructure, this can improve adoption, but it also creates governance questions about continuity, compatibility, and how production trust is maintained over time.
Expanded Definition
Open core software is a distribution model in which the foundational code is openly available, while adjacent enterprise features, managed hosting, support, or compliance tooling are commercialised separately. In NHI security, the model matters because production trust is not determined by openness alone, but by how the vendor preserves compatibility, release integrity, and lifecycle governance around credentials, automation, and policy enforcement.
Definitions vary across vendors. Some treat open core as a growth strategy for adoption, while others treat it as a packaging choice that can shift critical controls outside the publicly reviewable codebase. That distinction is especially important for identity infrastructure, where operators may rely on the open source core for integration patterns but still depend on proprietary components for auditability, high availability, or key management. A useful external baseline is the NIST Cybersecurity Framework 2.0, which emphasizes governance, supply chain awareness, and risk management regardless of licensing model.
The most common misapplication is assuming open source availability automatically implies operational transparency, which occurs when teams equate readable code with complete control over the production trust chain.
Examples and Use Cases
Implementing open core rigorously often introduces a packaging and dependency tradeoff, requiring organisations to weigh community visibility against the operational certainty of vendor-controlled features and support paths.
- An organisation adopts an open core IAM project for workload identity, then purchases managed hosting to meet availability and incident response expectations.
- A platform team evaluates whether proprietary policy modules change how service accounts are authenticated, rotated, or audited across environments.
- A security group reviews the release process for the core repository and compares it with vendor commitments described in the Ultimate Guide to NHIs.
- An enterprise uses the open core version for testing but requires commercial support before placing secrets handling and token issuance into production.
- A procurement team checks whether the open core edition can still support evidence collection aligned to NIST Cybersecurity Framework 2.0 controls.
Open core can accelerate experimentation, but it also means the organisation must verify which controls are truly in the open code and which are only available through paid layers or hosted services.
Why It Matters in NHI Security
Open core becomes critical in NHI security because the security promise of an identity platform depends on more than source availability. Teams need to know where secrets are stored, how service accounts are governed, and whether rotation, revocation, and logging remain usable if commercial components change. NHI Mgmt Group research shows that 96% of organisations store secrets outside secrets managers in vulnerable locations, and 79% have experienced secrets leaks, with 77% of those incidents causing tangible damage, underscoring how quickly weak operational controls become business events.
That risk is amplified in open core ecosystems where production reliance may grow faster than formal governance. The open code may be auditable, but the surrounding support model, compatibility guarantees, and hosted control planes can still determine whether trust holds under failure, upgrade, or acquisition scenarios. The Ultimate Guide to NHIs is a useful reference point for evaluating these lifecycle pressures alongside policy and visibility requirements.
Organisations typically encounter the consequences only after a break-glass event, product sunset, or sudden support gap, at which point open core governance becomes 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.SC | Open core shifts supply-chain and third-party risk into governance decisions around trust and support. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Open core platforms often expose NHI lifecycle gaps in rotation, revocation, and visibility. |
| NIST Zero Trust (SP 800-207) | SA-3 | Zero trust depends on trustworthy identity and policy enforcement regardless of software licensing model. |
Track which controls sit in core code versus commercial layers and review vendor dependency risk continuously.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 9, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
