What is an example of Identity, Credential and Access Management in practice?

What does Identity, Credential and Access Management look like in a real environment?

A practical ICAM programme starts with a clear inventory of identities, the credentials they use, and the systems they may reach. The control plane is not just about login. It also covers how accounts are created, how access is granted, how long credentials live, and how privilege is reviewed as systems, roles, and vendors change.

In day-to-day operations, that usually means defining who can request access, what proof is required, what gets approved automatically, and what must be reviewed by a person. It also means separating human, service, and machine access paths so that one weak credential does not become a broad trust shortcut.

How do teams apply ICAM controls in practice?

One common example is onboarding and access provisioning. A new employee, contractor, or service account is issued an identity, then assigned only the access needed for the role or task. If the role changes, access is adjusted. When the relationship ends, access and credentials are removed so old paths do not remain active.

Another practical example is credential protection and step-up control. Teams may use phishing-resistant MFA for people, stronger authentication for administrative actions, and scoped tokens or certificates for system-to-system access. The point is to make credential theft less useful and to make sensitive actions harder to perform without the right context.

For machine and workload access, a good reference point is Ultimate Guide to NHIs — What are Non-Human Identities, which shows how service accounts, API keys, tokens, and certificates fit into access control when software acts on behalf of something else.

What goes wrong when ICAM is treated as a one-time setup?

Weak ICAM usually fails through drift. Accounts outlive their owners, service credentials stay valid after deployment changes, and permissions accumulate because no one revisits them. Over time, the real control plane becomes much broader than the one the organisation thought it had.

That drift turns a stolen credential into a much bigger event. If access is overbroad, a single compromise can expose data, change configurations, or move into other systems. If shared accounts or long-lived secrets are common, attribution becomes harder and revocation becomes slower.

Top 10 NHI Issues is useful here because it frames the operational failures that most often appear when access, ownership, and credential hygiene are not actively governed.

Risk and Threat Considerations

ICAM failures are attractive because they turn ordinary business access into a durable attack path. Attackers often prefer valid credentials and legitimate access routes because they blend into normal activity, are harder to block cleanly, and can survive basic perimeter controls.

Failure mechanism: Excessive privilege, stale accounts, weak credential hygiene, and poor lifecycle control let a compromised identity perform more actions than intended, often without triggering immediate suspicion.

Impact: The result can be unauthorised access, lateral movement, data exposure, service abuse, and delayed containment because the organisation cannot quickly prove what access should still exist.

Practitioner Guidance

What to verify: Before trusting an ICAM control set, verify that every identity has an owner, every credential has a lifecycle, and every privileged path has a review or approval rule. If you cannot answer who owns the access, treat it as a control gap, not an admin detail.

What good looks like: Access is issued by role or workload need, privileged access is time-bound or tightly scoped, and revocation is predictable when a person leaves or a system changes. The strongest programmes make review and removal routine, not exceptional.

Practitioner takeaway: ICAM is working when access is both usable and removable, which means the hard part is not granting access but proving you can reduce it quickly when the context changes.

Related resources from NHI Mgmt Group

• Guide: Public Sector Identity Security Guide
• Why do hybrid identity environments often create more access risk when organisations split credential management between legacy and cloud systems?
• Why do identity and access management controls reduce the impact of credential theft?
• Identity, Credential and Access Management
• How should security teams run access reviews for non-human identities?