A subscription model makes sense when an organisation needs predictable scaling, easier device replacement, and a tighter link between procurement and lifecycle management. It is especially useful for enterprises rolling out phishing-resistant MFA across large user populations. Perpetual licensing may suit smaller or slower-changing environments, but subscriptions usually improve administrative flexibility and inventory visibility.
When subscription pricing fits the operational reality of security keys
Subscription models usually make more sense when the value of the key is tied to an ongoing service relationship rather than a one-time hardware purchase. That is common when the organisation expects frequent enrollment changes, staged rollouts, or recurring support needs. The licensing structure then matches how the device is actually used, maintained, and replaced.
For security teams, the key question is whether administration, support, and lifecycle coordination are part of the product value. If the answer is yes, subscription pricing can align procurement with refresh cycles, warranty handling, and policy changes. That matters more in environments where keys are part of a broader authentication programme than in static, low-change deployments.
Predictable scaling is one of the clearest reasons to prefer subscriptions. When you need to add users in batches, swap lost devices quickly, or expand to new groups without renegotiating a fresh licence structure each time, the operating model is simpler. If the environment is growing, a recurring model often reduces friction between purchasing and deployment.
Where perpetual licensing still has an advantage
Perpetual licensing can be a better fit when deployment size is stable, refresh cycles are long, and the organisation prefers a capital purchase with limited ongoing contractual commitment. In smaller environments, or in programmes with low turnover and infrequent replacement, the upfront model may be easier to budget and easier to administer.
The trade-off is that perpetual licensing usually shifts more burden onto the buyer after the initial purchase. Inventory tracking, device replacement, and lifecycle follow-up become internal responsibilities instead of being bundled into a service arrangement. If the team already has mature asset management and a slow change rate, that burden may be acceptable.
Subscription is also less compelling when the organisation does not need the vendor relationship to stay tightly coupled to usage. If the keys are deployed once and left alone for long periods, the recurring cost can buy convenience that the environment does not actually use. In that case, the simpler economic answer may be the better operational answer.
What security teams should weigh before choosing the model
For security keys, procurement should not be decided on price alone. The licensing model affects how quickly devices can be replaced, how clearly ownership is tracked, and how easily the programme can absorb change. That is why subscription often wins for large phishing-resistant MFA rollouts, while perpetual licensing can remain rational in slower-moving estates.
Practical judgement should focus on lifecycle fit, not just cost per unit. If the organisation needs better inventory visibility and smoother device turnover, a recurring model can support those goals. If the keys are part of a fixed estate with infrequent change, perpetual licensing can remain efficient without adding unnecessary vendor dependency.
One useful benchmark is whether the licensing model makes it easier to maintain current, assigned devices across the fleet. When the answer is yes, subscriptions are usually pulling their weight. When the answer is no, the organisation may be paying for flexibility it does not use.
Practitioner takeaway: Choose the model that best matches the operational tempo of the authentication programme, because licence structure should support lifecycle management rather than fight it.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
CIS Controls v8, NIST SP 800-63 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | 6 — Access Control Management | Security keys underpin authentication and access control. |
| Recommendation — Align licensing with access lifecycle and device replacement controls. | ||
| NIST SP 800-63 | AAL — Authenticator Assurance Levels | Security keys are phishing-resistant authenticators used in assurance-based deployment decisions. |
| Recommendation — Use authenticator assurance requirements to guide rollout and replacement planning. | ||
| NIST CSF 2.0 | ID.AM — Asset Management | Key programmes depend on accurate inventory and lifecycle visibility. |
| Recommendation — Track issued keys and refresh cycles in asset inventory processes. | ||
Related resources from NHI Mgmt Group
- How should security teams make NHI best practices usable across the business?
- How should security teams govern API keys used for generative AI access?
- What are the signs that a SaaS third-party security model is not being governed effectively?
- How should security teams prioritise NHI remediation in cloud environments?
