How should organisations run access recertification for employees and contractors in regulated environments?

Organisations should run recertification as a repeatable control that periodically reviews, validates, and removes access that is no longer justified. The process should document who approved access, when it was last reviewed, and what changed. Strong recertification ties directly to compliance evidence, limits privilege creep, and gives auditors a clear trail for decisions made across employee and contractor populations.

Why This Matters for Security Teams

access recertification is not a paperwork exercise in regulated environments. It is one of the few controls that can prove access is still justified after hiring, role changes, vendor churn, and project completion. Regulators and auditors expect evidence that access is reviewed on a defined cadence, decisions are documented, and exceptions are handled consistently. That expectation aligns with the broader control discipline described in the NIST Cybersecurity Framework 2.0 and NHIMG’s guidance on regulatory and audit perspectives.

The practical risk is privilege drift. Employees accumulate access through promotions and temporary assignments, while contractors often retain access long after the statement of work changes. In environments governed by financial services, healthcare, critical infrastructure, or privacy obligations, that drift becomes a compliance failure long before it becomes a breach. NHIMG notes that only 5.7% of organisations have full visibility into their service accounts, which is a reminder that poor review hygiene usually starts with incomplete inventory and ends with unjustified access surviving too long.

In practice, many security teams encounter over-entitled users only after an audit exception, termination gap, or incident review has already exposed the control weakness.

How It Works in Practice

Strong recertification begins with scope, not email reminders. Security teams should define which entitlements are in review, who the approver is, what evidence is required, and what happens when an owner does not respond. For employees, the review should be tied to role, manager, system owner, and business justification. For contractors, it should also reflect vendor sponsor, end date, and contract renewal status. The objective is to validate whether access still matches current job need, not whether someone is still employed somewhere in the enterprise.

A workable process usually includes three steps. First, compile the entitlement inventory from IAM, PAM, SaaS, and application-specific logs. Second, present reviewers with contextual data such as last login, privilege level, data sensitivity, and joiner-mover-leaver events. Third, enforce outcomes automatically: keep, reduce, or revoke. Where possible, integrate recertification with NIST SP 800-53 Rev. 5 security and privacy controls so the review record maps cleanly to access governance and audit evidence.

• Use risk-based cadences for privileged, sensitive, and external access.
• Require named approvers who can explain business need, not just rubber-stamp ownership.
• Capture evidence of decision, date, reviewer, and remediation action.
• Escalate non-response to automatic removal or temporary suspension.

This is also where NHIMG’s Ultimate Guide to NHIs is useful as a governance model, because the same lifecycle discipline applies to human and non-human access when organisations want durable auditability. These controls tend to break down when access is spread across too many SaaS tools and business-owned applications because no single system holds a complete entitlement record.

Common Variations and Edge Cases

Tighter recertification often increases operational overhead, requiring organisations to balance audit confidence against reviewer fatigue and service disruption. The right cadence is not universal. Current guidance suggests that high-risk or privileged access should be reviewed more often than low-risk standard access, but there is no universal standard for this yet. Best practice is evolving toward risk-based recertification rather than one fixed schedule for all populations.

Contractors need special handling because their access lifecycle is usually tied to a vendor relationship rather than an HR record. If sponsor accountability is weak, access reviews can become symbolic. The same issue appears with shared accounts, break-glass access, and service credentials that are being managed like employee entitlements. For those cases, access review alone is insufficient and should be paired with rotation, ownership validation, and offboarding controls described in the Top 10 NHI Issues.

One useful NHIMG data point is that 80% of identity breaches involved compromised non-human identities such as service accounts and API keys, which reinforces why regulated organisations should not let recertification stop at human users. The control should cover all identities with access authority, even when the entitlement is not tied to a payroll record. Edge cases become especially difficult when contractor access is embedded in federation, delegated administration, or multiple regional compliance regimes, because ownership and revocation rights are split across teams and jurisdictions.

Related resources from NHI Mgmt Group

• Why do identity and access management controls matter so much in regulated professional services environments?
• What breaks when organisations rely on manual access administration in large hybrid environments?
• How should organisations govern contractor access in federal and defense environments without creating onboarding bottlenecks?
• Why do contractors and service providers increase access risk in infrastructure and application environments?