A regulatory model that attaches compliance obligations to the specific service or transaction being performed rather than only to the legal entity. For payments, this means controls, evidence, and capital expectations follow the activity itself, which forces continuous operational governance instead of one-time certification.
Expanded Definition
Activity-based regulation attaches obligations to the service, transaction, or function being performed, rather than relying only on the legal form of the organisation delivering it. In practice, that means the regulated activity must carry its own controls, records, oversight, and escalation path wherever it is executed. In payments and adjacent digital services, this approach shifts compliance from a one-time licence mindset to a continuous governance model that tracks the activity itself across products, channels, and service providers.
This matters in NHI and agentic environments because non-human identities often execute regulated actions at machine speed, through APIs, jobs, and delegated workflows. The control question is not only who owns the entity, but which identity performed the activity, under what authority, and with what evidence. That is why activity-based regulation aligns closely with identity traceability expectations in the NIST Cybersecurity Framework 2.0 and with the governance emphasis in Ultimate Guide to NHIs — Regulatory and Audit Perspectives. Definitions vary across vendors and legal regimes, so the precise scope of “activity” may differ by jurisdiction and sector.
The most common misapplication is treating activity-based regulation as a filing exercise, which occurs when teams map obligations to a corporate entity once and fail to track the identities, systems, and transactions actually performing the regulated work.
Examples and Use Cases
Implementing activity-based regulation rigorously often introduces reporting and control overhead, requiring organisations to weigh operational flexibility against the cost of continuous evidence collection.
- A payment initiation API is subject to transaction-level logging, approval, and reconciliation even when the request passes through multiple service accounts and microservices.
- A fintech outsourcer inherits obligations to preserve audit evidence for a card processing flow, with controls tied to the activity rather than the legal wrapper of the service provider.
- An AI agent that triggers refunds must be bound to a defined permission set, with every decision traceable to the exact service identity and approval context.
- A cloud workflow that moves customer funds between ledgers must preserve immutable records of the NHI, secret, and policy state in effect at the moment of execution.
- During review of recurring service-account abuse patterns, NHI governance teams often use guidance from the Top 10 NHI Issues alongside operational controls described by NIST Cybersecurity Framework 2.0.
For NHI programmes, the practical test is whether the organisation can reconstruct the activity from identity issuance through execution and offboarding. The Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs is especially relevant when a regulated activity depends on credential rotation, revocation, and service-account retirement.
Why It Matters in NHI Security
Activity-based regulation raises the bar for NHI security because a weakly governed service account can become a regulated control failure, not just an IT hygiene issue. When obligations attach to the activity, poor secret handling, overprivileged machine identities, and missing offboarding records can create direct compliance exposure across the transaction chain. That is especially important in environments where NHIs outnumber human identities by 25x to 50x, making manual oversight unrealistic and increasing the chance that regulated actions are carried out by stale or excessive credentials NHI Mgmt Group.
Security teams need this term because regulators and auditors increasingly expect evidence that the specific machine identity performing the activity was authorised, monitored, and rotated on schedule. Without that linkage, incident response becomes slower, control attestations become weaker, and accountability fragments across cloud, CI/CD, and third-party services. The governance lesson is simple: if the activity is regulated, the identity executing it must be governed with the same seriousness as a human approver.
Organisations typically encounter the operational meaning of activity-based regulation only after a disputed transaction, audit exception, or identity compromise, at which point the term 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 SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-4 | Access permissions must match the regulated activity, not just the entity. |
| OWASP Non-Human Identity Top 10 | NHI-02 | Activity-based regulation depends on strong secret and credential governance for machine identities. |
| NIST SP 800-63 | IAL/AAL (null) | Identity assurance concepts help map who or what may execute a regulated action. |
Require sufficient assurance before allowing an NHI to perform regulated activities.
Related resources from NHI Mgmt Group
- Why are identity-based attacks growing faster than traditional network attacks?
- What is the difference between a rules-based secret scanner and a hybrid scanner?
- What is the difference between role-based access and API key governance for NHI security?
- How should security teams monitor AI agent activity without disrupting developers?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 10, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
