A dual identity record captures both sides of a delegated action: the user whose session or data is involved and the person or system acting on their behalf. This structure is important because it lets logs, sessions, and audit events retain attribution even when one identity is temporarily substituted for another.
Expanded Definition
A dual identity record is a logging and audit pattern used when one actor performs an action on behalf of another. It preserves both the originating identity and the acting identity so downstream systems can distinguish delegation, impersonation, support activity, and automated execution without losing attribution.
The boundary is important. A dual identity record is not simply a richer user profile, and it is not the same as a proxy header or a session token. It is the record structure that ties together the person or workload that initiated the request with the identity that actually executed it. That distinction matters in IAM, PAM, and machine access workflows where a single event can involve a human approver, a privileged operator, or a non-human identity acting under delegation.
Practitioners often misread delegated activity as if one identity fully replaces the other. In reality, the audit problem is preserving both sides of the action so later review can answer who requested, who executed, and under what authority.
For background on machine identity governance, the OWASP Non-Human Identity Top 10 offers useful context on how delegated and non-human access patterns expand audit and control requirements: OWASP Non-Human Identity Top 10.
Examples and Use Cases
Dual identity records appear anywhere delegation must remain visible after the fact. They are especially useful when the operating identity and the accountable identity are not the same.
- Help desk staff resets a user account while the audit trail preserves the ticket owner and the technician who executed the change.
- A privileged admin performs an emergency login under approved delegation, and the record stores both the requester and the emergency operator.
- A workflow engine executes an approved action on behalf of a person, while the log records the human approver and the service identity that carried it out.
- An API gateway relays a request through a service account, but the event record still shows the originating application or user context.
- A machine identity rotates a secret after a human approval step, and the resulting audit entry ties the approval identity to the automated executor.
The tradeoff is that richer identity records require more careful schema design. If the two sides are not modeled consistently, teams may end up with partial logs that are hard to query and even harder to reconcile across SIEM, IAM, and ticketing systems.
Security Implications
When dual identity records are missing or incomplete, delegation becomes an attribution gap. Security teams may know that an action happened, but not whether it was initiated by the rightful owner, a delegated operator, or an automated identity acting with broader permissions than expected.
That gap affects investigations, access reviews, and non-repudiation. A single identity field can hide privilege use behind a shared account, a service account, or an administrative proxy, making it difficult to reconstruct the sequence of authority. In regulated environments, weak attribution can also undermine evidence quality for audit and incident response.
The practical symptom is inconsistent traceability: the request trail lives in one system, the execution trail in another, and neither cleanly ties the two together. Over time, that weakens confidence in access controls because organisations cannot easily prove whether delegation was authorised, appropriate, and limited to the intended scope.
Domain and Governance Relevance
Dual identity records matter most where identity, privilege, and accountability intersect. In classic IAM they help preserve who requested an action and who executed it. In PAM they become especially important because privileged delegation, break-glass access, and shared administrative pathways all need stronger attribution than ordinary user activity.
The relevance increases further with non-human identities. If an automation account, workload identity, or agentic system acts on behalf of a human or another system, governance must preserve both the delegating context and the acting context. That is the difference between a traceable delegated action and an opaque machine-initiated event.
For NHIMG’s identity-security lens, the key governance question is whether logs can still answer ownership, authority, and execution questions after delegation has occurred. Without that, review, offboarding, and incident reconstruction all become weaker than the control model appears on paper.
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 and MITRE ATT&CK address the attack and risk surface, while NIST CSF 2.0, CIS Controls v8 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 — Identity Inventory and Ownership | Dual identity records depend on clear ownership across delegated human and machine actors. |
| Recommendation — Record both the delegating and executing identities for every delegated action. | ||
| NIST CSF 2.0 | PR.AC-1 — Identity and Credential Management | Attribution gaps weaken identity traceability across delegated access paths. |
| Recommendation — Preserve identity context so delegated actions remain traceable in access logs. | ||
| CIS Controls v8 | 5.4 — Account Inventory and Control | Shared or delegated activity needs account traceability to support review and accountability. |
| Recommendation — Map delegated activity to accountable identities in your account records and logs. | ||
| NIST SP 800-63 | IAL2 — Identity Assurance Level 2 | Delegated actions require reliable identity assurance when records are used for accountability. |
| Recommendation — Bind audit events to identities whose assurance supports later review and attribution. | ||
| MITRE ATT&CK | T1078 — Valid Accounts | Dual identity records help distinguish legitimate delegated use from abused valid accounts. |
| Recommendation — Use dual-attribution logs to spot valid-account abuse hidden behind delegation. | ||
