Topic starter
10/07/2026 9:25 pm
TL;DR: Choosing between on-premises and cloud IAM is not a theory exercise, because compliance, legacy integrations, cost, security investment, and NHI sprawl all shift the risk profile, according to Soffid and Verizon. The decisive question is whether your identity model can sustain centralized control as cloud scale, third-party dependencies, and non-human identities increase.
Editorial analysis by NHI Mgmt Group, based on content published by Soffid: “On Prem vs Cloud: Choosing the right IAM architecture”.
Key questions
Q: How should security teams choose between on-premises and cloud IAM?
A: They should choose the model that can prove control ownership, auditability, and lifecycle governance for their actual environment.
Q: Why do cloud IAM programmes often expose more governance work than expected?
A: Because cloud shifts responsibility rather than removing it.
Q: What breaks when legacy systems move into cloud IAM without a dependency review?
A: Authentication chains, provisioning flows, and downstream authorisation logic can fail when a provider update changes the interface or control model.
Practitioner guidance
- Map compliance obligations to control ownership Document which identity controls must remain directly administered by the organisation and which can be delegated to a cloud provider with acceptable assurance evidence.
- Inventory fragile legacy integrations List every authentication, provisioning, and entitlement dependency that could break if a cloud provider changes an API, connector, or policy model.
- Establish a central identity governance layer Use one entitlement policy and review process across on-premises, cloud, and SaaS environments so access decisions do not fragment by platform.
Bottom line: On-premises and cloud IAM create different operational burdens, but neither removes the need for strong identity governance.
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10/07/2026 9:48 pm
Centralised identity governance is the real decision criterion, not deployment location. The article shows that on-premises and cloud both fail when access control is fragmented across business units, platforms, and lifecycle owners. The strongest control question is whether the organisation can keep one policy model for entitlements, recertification, and revocation across both environments. Practitioners should treat central governance as the design goal and deployment model as the implementation detail.
A question worth separating out:
A: Yes. Organisations should start with a governance layer that gives them visibility into identities, entitlements, and application access, then extend privileged controls where the highest risk exists. That sequence helps teams establish policy, approvals, and review discipline before they manage elevated access at scale. It also makes later PAM expansion easier to operationalise.
👉 Read our full editorial: On-premises vs cloud IAM: the governance trade-offs that matter