Certificate outages expose the governance gap in machine identity management

At a glance

What this is: This is a research-led look at why digital certificate outages keep recurring and what the data says about visibility and automation gaps in certificate lifecycle management.

Why it matters: It matters because certificate failure is a machine identity problem that affects NHI, workload, and human access paths, so IAM teams need governance that sees the full credential lifecycle.

By the numbers:

• An overwhelming 86% of companies suffered at least one outage and subsequent disruption due to expired or mismanaged digital certificates within the past year.
• Only 17% of practitioners reported having complete, real-time visibility across all certificates.
• 70% of respondents report pressure to automate certificate, ificate lifecycle management.

👉 Read Keyfactor's research on certificate outages and automation gaps

Context

Digital certificate management is the control plane for machine trust, not just a back-office PKI task. When certificates expire or are mismanaged, the outage is usually the symptom of a larger identity governance problem: missing inventory, unclear ownership, and automation that does not reach the full lifecycle.

Keyfactor’s research shows a familiar pattern for machine identity programmes. Organisations know they need automation, but they still struggle to see every certificate, renew it consistently, and align controls with shorter lifespans and operational dependency across workloads, applications, and internal services.

Key questions

Q: What breaks when certificate lifecycle management is not fully visible?

A: When certificate lifecycle management lacks visibility, teams do not know what exists, who owns it, or when it will expire. That turns renewal into a reactive exercise and lets outages surface only after trust fails. The result is weak accountability, slow remediation, and repeated disruption across dependent services.

Q: Why do short certificate lifespans create more risk for machine identity programmes?

A: Shorter lifespans compress the time available for discovery, approval, deployment, and rollback. If those steps still depend on people noticing expiry, the process will fail more often as validity windows shrink. Machine identity governance must therefore move from periodic review to continuous control.

Q: How can security teams tell whether certificate automation is actually working?

A: Automation is working when discovery, renewal, deployment, and exception handling all happen with minimal manual intervention and no outage-driven surprises. A partial workflow that still relies on manual approvals or last-minute fixes is not true lifecycle automation, even if some steps are scripted.

Q: Who should be accountable when certificate outages affect business services?

A: Accountability should sit with the team that owns the machine trust path, not only with infrastructure operations. Certificates are identity assets with operational consequences, so ownership must cover inventory accuracy, renewal timing, and incident response across the full dependency chain.

Technical breakdown

Why certificate lifecycle visibility fails at scale

Certificate lifecycle management breaks when teams cannot answer basic identity questions at runtime: what exists, where it is deployed, who owns it, and when it expires. In large environments, certificates are distributed across application stacks, service meshes, devices, and cloud workloads, so spreadsheets and partial inventories rapidly lose accuracy. Visibility is not just a discovery problem. It is the control prerequisite for renewal, revocation, and incident response. Without it, organisations only learn about certificate drift when systems fail or access breaks unexpectedly.

Practical implication: establish a complete certificate inventory tied to ownership and expiry metadata before automating renewal or rotation.

Why automation often stops at partial success

Automation in certificate management usually fails at integration boundaries. Renewal workflows may exist, but they often depend on manual approvals, incomplete access controls, or brittle connections to application teams and infrastructure platforms. That is why partial automation can coexist with outages. The system looks automated on paper, yet the most failure-prone steps still depend on people noticing a deadline or approving a renewal at the right time. In practice, automation only reduces risk when it covers discovery, renewal, deployment, and exception handling together.

Practical implication: test certificate automation end to end, including renewal, deployment, and rollback, rather than automating only the least controversial steps.

How shrinking certificate lifespans change the identity model

Shorter certificate lifespans compress the margin for error. A control model that worked with year-long validity periods becomes fragile when lifetimes move toward weeks, because renewal delays, dependency failures, and ownership ambiguity have less time to be detected and corrected. That shifts certificate management from periodic maintenance to continuous governance. The operational lesson is that certificates behave like time-bound machine identities, not static assets. Their security value depends on lifecycle discipline, not just on cryptographic strength.

Practical implication: treat certificate expiry as a governance deadline and align renewal windows, alerts, and ownership checks to the shortest expected validity period.

Threat narrative

Attacker objective: The practical objective is not always malicious takeover, but the same failure mode enables service disruption and trust loss by abusing unmanaged machine identity state.

1. Entry begins when a certificate expires, is misissued, or is not deployed correctly across a dependent workload or service.
2. Escalation occurs when the affected identity path is not discovered in time, so renewal, replacement, or revocation cannot be executed before disruption spreads.
3. Impact is operational outage, broken service trust, and in some cases a wider security exposure if stale certificates continue to authenticate systems.

Breaches seen in the wild

• Sisense breach — unauthorized GitLab access led to exfiltration of access tokens, API keys and certificates.
• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

Certificate outages are a machine identity governance problem before they are an uptime problem. The research shows that organisations are still trying to manage certificates as isolated technical artefacts, even though they now function as persistent workload identities across complex environments. That framing fails because ownership, visibility, and renewal discipline are governance controls, not after-the-fact recovery tasks. Practitioners should read outage data as evidence that machine identity governance is still immature.

Visibility debt is the named concept this report exposes. Complete, real-time visibility across certificates is the prerequisite for any credible lifecycle control, yet only a small minority of organisations report having it. When visibility is missing, renewals become reactive, revocation becomes delayed, and accountability becomes fragmented across teams. The practitioner conclusion is that certificate sprawl is not manageable at scale without a verified inventory and clear ownership model.

Partial automation creates a false sense of control. The report shows that many organisations automate some lifecycle steps while leaving renewal, deployment, approvals, or integrations exposed to manual failure. That is why outages persist even when automation investment is rising. For governance teams, the lesson is that automating fragments of the process does not equal lifecycle control; the control objective is end-to-end determinism across the certificate path.

Shorter certificate lifespans make manual exception handling structurally unsafe. As validity windows shrink, human-paced renewal and approval processes no longer fit the operational tempo of modern machine identity ecosystems. That is not a tooling complaint, it is a governance mismatch between time-bound credentials and slow control loops. Practitioners should treat the shrinking lifespan trend as a forcing function for redesigning certificate governance around continuous oversight.

Certificate management now sits at the intersection of IAM, IGA, and operational resilience. The outages in this report affect business continuity, compliance readiness, and trust establishment at the same time. That means certificate programmes can no longer live only inside infrastructure teams. The practitioner conclusion is that certificate lifecycle governance needs identity ownership, operational accountability, and resilience reporting in the same control model.

From our research:

• 66% say their current tooling is not adequate to manage the scale of machine identities they now have, according to The Critical Gaps in Machine Identity Management report.
• 57% of organisations lack a complete inventory of their machine identities.
• For a broader view of lifecycle control, see NHI Lifecycle Management Guide, which explains why inventory, ownership, and offboarding must be managed together.

What this signals

Visibility debt is now the limiting factor for certificate governance. When only 17% of practitioners report complete, real-time visibility across certificates, the programme problem is not renewal logic alone but control-plane blindness. Teams should expect certificate governance to become a board-level resilience issue wherever outages map directly to customer-facing services.

With certificate lifespans shortening and automation pressure rising, the operational model has to change from periodic maintenance to continuous identity oversight. This is the same structural shift that appears across machine identity programmes more broadly, which is why the Ultimate Guide to NHIs , Key Challenges and Risks remains relevant as a baseline reference for governance design.

Certificate lifecycle control is converging with broader NHI lifecycle management. The practical implication is that renewal, revocation, and ownership cannot remain isolated inside PKI teams. Identity leaders should align certificate programmes with machine identity governance, because the failure mode is no longer a technical expiry event but a missed control in the lifecycle chain.

For practitioners

• Build a complete certificate inventory Map every certificate to an owner, system, expiry date, and deployment location so renewal is driven by authoritative data rather than ad hoc discovery.
• Automate the full certificate lifecycle Extend automation beyond renewal requests to include deployment, validation, rollback, and exception handling across the environments where certificates are used.
• Tie renewal windows to the shortest validity period Review alerting and renewal schedules against the shortest certificate lifetime in your estate so shortening validity does not create avoidable outage risk.
• Assign operational ownership for machine trust paths Make a named team accountable for certificate health across applications, workloads, and infrastructure, including outage triage and revocation decisions.

Key takeaways

• Certificate outages are recurring because visibility, ownership, and lifecycle control are still incomplete in many machine identity programmes.
• The scale of disruption shows the problem is operational and governance-led, not just a cryptographic renewal issue.
• Teams need end-to-end certificate automation and authoritative inventory if they want to prevent outages as lifespans shrink.

Key terms

• Certificate lifecycle management: The process of discovering, issuing, renewing, deploying, and revoking certificates across an environment. In practice, it is an identity governance discipline because certificate state determines whether machines can authenticate, trust can be established, and outages can be prevented.
• Machine identity: A non-human identity used by software, workloads, devices, or services to prove who or what they are. Certificates are one common form of machine identity, and their governance matters because expiry, drift, and ownership failures can interrupt both security and availability.
• Visibility debt: The cumulative gap that appears when teams cannot reliably see what identities, credentials, or certificates exist, where they are used, and who owns them. In machine identity programmes, visibility debt becomes an operational risk because automation cannot control assets it cannot fully discover.
• Trust path: The chain of systems, identities, and validation steps that allows a certificate to establish trust for a workload or service. When this path is not owned and monitored end to end, a single certificate failure can propagate into service disruption or security blind spots.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity security are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Keyfactor: Digital Certificate Outages Are a Weekly Reality for 1 in 10 Enterprises. Read the original.