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25/06/2026 1:25 am
TL;DR: PKI operating costs are often far higher than organisations expect, with a Forrester model showing $12.7 million in three-year benefits and a 356% ROI from modernisation against $2.8 million in costs, according to Keyfactor. The practical lesson is that certificate lifecycle automation, not manual administration, is now the decisive control for scale and cost.
NHIMG editorial — based on content published by Keyfactor: The Real Cost of PKI: What Certificate Management Costs
By the numbers:
- The same study found total benefits of $12.7 million in present value against total costs of $2.8 million over three years.
- Provisioning a single certificate takes an average of 90 minutes in manual workflows, compared with 2 minutes when automated.
Questions worth separating out
Q: How should security teams reduce PKI operating cost without weakening trust controls?
A: Start by removing manual work from the certificate lifecycle.
Q: Why do short TLS lifespans increase operational risk for certificate teams?
A: Shorter lifespans compress the time available to discover, approve, renew, and deploy certificates before they expire.
Q: What breaks when certificate ownership and visibility are unclear?
A: Renewal work becomes fragmented, duplicated, or missed because no one can prove which certificate belongs to which service or business unit.
Practitioner guidance
- Inventory certificate ownership and expiry state Build a complete inventory of CA servers, HSMs, public certificates, private certificates, and renewal owners so you can see where lifecycle work is actually happening.
- Automate the highest-volume renewal paths Prioritise automation for certificates with the most frequent renewals and the highest operational touch cost, especially where manual renewal exceeds the acceptable service window.
- Reassess certificate type by trust boundary Review where public certificates are being used for internal traffic, service-to-service trust, or other closed use cases that could be served by private issuance.
What's in the full article
Keyfactor's full blog post covers the operational detail this post intentionally leaves for the source:
- The full cost model behind the $921,000 infrastructure baseline, including CA servers, HSMs, licensing, and staffing assumptions.
- The Forrester composite organisation inputs, including the 40,000 employee and 400,000 certificate assumptions used in the ROI calculation.
- The breakdown of savings across renewal automation, deployment automation, incident reduction, and infrastructure consolidation.
- The business-case framing and customer quotes that support the ROI narrative for leadership audiences.
👉 Read Keyfactor's analysis of PKI costs and certificate management ROI →
PKI cost and certificate sprawl: what IAM teams need to know?
Explore further
25/06/2026 10:50 am
PKI cost overrun is really lifecycle debt. The article shows that the expensive part of PKI is not cryptography, it is the operational burden created by repeated certificate actions that have to be tracked, renewed, deployed, and audited. That makes PKI a lifecycle governance problem as much as a security service. Practitioners should read the cost curve as evidence that unmanaged lifecycle work is consuming budget that ought to be buying control.
A few things that frame the scale:
- Systems with least-privileged AI access had a 17% incident rate vs 76% for over-privileged systems, according to the 2026 Infrastructure Identity Survey.
- The same survey found that 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job.
A question worth separating out:
Q: Who should own PKI modernisation decisions in an enterprise identity programme?
A: Ownership should sit with the identity or infrastructure team that can tie PKI operations to certificate inventory, lifecycle automation, and service impact. Finance should help validate the business case, but the technical decision needs to be driven by the teams accountable for certificate availability, renewal, and trust boundaries.
👉 Read our full editorial: PKI cost is rising fast as certificate volumes and renewals grow
