Accountability should sit with the team that owns the asset lifecycle, not just the team that purchased it. Facilities, IT, security, and identity teams may all have a role, but one owner must be responsible for credentials, updates, and retirement. Without clear ownership, device security becomes everyone’s problem and nobody’s control.
Why This Matters for Security Teams
Smart devices are often treated like appliances, but once they connect to corporate networks, cloud platforms, or physical access systems, they become security-managed assets with credentials, firmware, telemetry, and retirement risk. Accountability matters because the organisation does not fail at purchase time; it fails later when no one owns patching, token rotation, certificate renewal, or decommissioning. That gap is a classic non-human identity problem, not just an endpoint problem.
NHI Management Group’s Ultimate Guide to NHIs shows why this matters: 80% of identity breaches involved compromised non-human identities such as service accounts and API keys. The same pattern applies when smart devices rely on persistent credentials that outlive their operational use. NIST’s NIST Cybersecurity Framework 2.0 reinforces the need for clear governance, ownership, and lifecycle control across assets and identities.
In practice, many security teams encounter device compromise only after an unused badge reader, camera, sensor, or building controller is still trusted months after the original owner has moved on.
How It Works in Practice
Accountability should follow the asset lifecycle, not the procurement event. The team that owns the device’s operational outcome should be responsible for security outcomes as well, with IT, facilities, security, and identity teams each covering a defined slice of the lifecycle. For example, facilities may own physical deployment and maintenance access, IT may own network enrollment, security may define control baselines, and identity teams may manage certificates, secrets, and revocation.
That division only works when one named owner is accountable for the full chain: onboarding, credential issuance, configuration hardening, patching, monitoring, and retirement. The Ultimate Guide to NHIs is especially relevant here because smart devices often behave like NHIs in practice: they authenticate to services, hold secrets, and require rotation and offboarding. NIST CSF 2.0 supports this approach by making governance and asset management visible and auditable rather than informal.
- Assign a single accountable owner per device class, not per individual device purchase.
- Separate operational responsibility from security policy ownership, but do not split final accountability.
- Track credentials, certificates, and API keys as part of the device record.
- Require patch status, firmware version, and retirement date to be visible in inventory.
- Revoke access during decommissioning, not after disposal.
Where this becomes most practical is in environments that can map each smart device to an owner, a lifecycle stage, and a revocation path; these controls tend to break down in highly distributed estates where facilities teams, outsourced installers, and IT operations all assume someone else owns the final shutdown step.
Common Variations and Edge Cases
Tighter ownership often increases administrative overhead, requiring organisations to balance clear accountability against cross-functional coordination. That tradeoff is worth it, but the ownership model should reflect the device type and risk profile. A smart thermostat is not a badge reader, and a building controller is not a consumer IoT device. Current guidance suggests the accountable party should be the team with the strongest ability to act on the risk, even if another team operates the device day to day.
There is no universal standard for this yet, but best practice is evolving toward lifecycle-based accountability: whoever can approve changes, enforce updates, and retire the device should be accountable. For integrated systems, shared responsibility is common, but shared responsibility is not the same as shared accountability. One owner must answer for credential hygiene, logging, and end-of-life revocation. If a third-party integrator manages firmware or certificates, that vendor should be treated as an operator, not the accountable owner.
Edge cases also arise when devices are embedded in facilities systems or managed by procurement-led programs. In those environments, the most common failure is fragmented ownership across contracts, where no team has authority to rotate secrets or disable access. The NHI security pattern described in Ultimate Guide to NHIs applies cleanly: if an asset authenticates, it needs an owner who can govern its identity from birth to retirement.
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 CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | ID.AM-1 | Smart device accountability starts with accurate asset ownership and inventory. |
| NIST CSF 2.0 | PR.AC-1 | Device access must be governed through clear identity and access control ownership. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Smart devices often rely on secrets that need ownership and lifecycle management. |
Tie device credentials and access approvals to a single accountable control owner.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on July 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
