Examples in this article are illustrative, not customer case studies. Product availability and coverage are described on the linked capability pages.
Cloud infrastructure entitlement management (CIEM) is the practice of inventorying every human and machine identity in your cloud accounts, resolving what each one can effectively do, and reducing the gap between granted and needed permissions. It applies least privilege to cloud identities continuously, rather than relying on periodic access reviews.
Ask a platform team how many identities can act in their cloud accounts and the honest answer is usually “more than we can list”. Service accounts, workload identities, CI roles and third-party integrations outnumber people, and each carries permissions someone granted once and nobody revisited. This guide defines CIEM, sets out what a CIEM capability should do, and shows where it sits next to IAM, PAM and CSPM.
The worked example is a data platform team running pipelines across two cloud providers. Their ingestion jobs, scheduler, CI system and an external analytics vendor all hold cloud identities, and an internal audit has just asked who can read the raw customer data bucket.
CIEM exists because machine identities outgrew access reviews
Identity governance grew up around people: joiners, movers and leavers, with a manager approving each person’s access. Cloud changed the population. Every function, container, pipeline and integration needs an identity, and those identities are created by engineers in code, not by an identity team in a ticket.
Least privilege is old as a principle. NIST SP 800-53 states it as control AC-6, which requires that users and processes hold only the access needed for their tasks. What CIEM adds is a way to apply it to thousands of machine identities whose permission models differ by provider and change with every deployment. For the data platform team, the audit question cannot be answered from the identity provider, because most of the identities that can read the bucket never sign in through it.
What a CIEM capability should do
A useful CIEM capability does four jobs, in order.
- Inventory every identity. People, federated roles, workload identities, service accounts, CI roles and cross-account trusts, across every provider.
- Resolve effective permissions. Combine inline policies, group membership, role assumption, resource policies and explicit denies into what each identity can actually do.
- Compare granted with used. Activity logs show observed use; unused permissions need review against seasonal jobs, recovery tasks and logging gaps before removal.
- Rank and reduce. Prioritise reductions by what an identity can reach, not by how many permissions it holds, and track each change to closure.
Step two is where most of the difficulty lies. A data ingestion job may hold a narrow role that can assume a broader one, which makes its effective reach far larger than its written policy. Those assumption chains are why the deeper treatment in modelling excess privilege as graph edges argues for a graph rather than a table.
CIEM vs IAM, PAM and CSPM
CIEM overlaps with several established categories, and buyers often ask whether it replaces any of them. It does not; it answers a different question.
| Category | Question it answers | Main population |
|---|---|---|
| IAM | Who can authenticate and with which policy | People and applications |
| IGA | Who approved this access and is it still needed | People |
| PAM | How is privileged access brokered and recorded | Administrators |
| CSPM | Is this cloud resource configured safely | Cloud resources |
| CIEM | What can each cloud identity effectively reach | Human and machine identities |
For the data platform team, IAM defines the roles, PAM brokers the administrators’ break-glass access, CSPM flags the bucket’s public-access setting, and CIEM answers the audit’s actual question: which identities, through which chains, can read that bucket today.
CIEM findings matter most when joined to workloads
An excess permission is a latent risk. It becomes an urgent one when the identity holding it runs on something an attacker can reach. A workload identity with read access to customer data is a hygiene issue on an internal batch job and a priority on an internet-facing service with a known vulnerability.
That is why CIEM works best on the same model as posture and workload findings. The route from exposed service to vulnerable image to assumable role to data store is an attack path, and cutting the identity edge is often the cheapest way to close it, as shown in identity attack paths from assumable role to data store. The same join appears from the posture side in cloud attack paths.
Key takeaways
- Inventory machine identities, CI roles and cross-account trusts alongside people, because they make up most of the population.
- Resolve effective permissions through role assumption and resource policies before judging any identity’s risk.
- Rank permission reductions by what an identity can reach, not by the number of permissions it holds.
- Join entitlement findings to workload and posture findings so the riskiest identities surface first.
How SecurityVault approaches this
SecurityVault connects collected identities, roles and resources with cloud posture and workload findings. This helps teams investigate possible access paths and prioritise permission reviews. Effective access still depends on provider-specific conditions and available evidence. Validate operational requirements before removing unused permissions, and confirm changes through a fresh collection.
For evaluation, choose a service identity with a documented purpose and a resource whose access rules are understood. Review the collected permissions with the identity owner, including inheritance, assumption conditions and explicit denies. Compare observed use over an agreed period without assuming that unused access is unnecessary. Then test an approved reduction in a controlled environment and refresh collection. The outcome should be a defensible access review with named responsibilities and operational checks, rather than an automatic removal list derived only from a quiet activity log.
Explore Identity and entitlements or talk to our team about an evaluation with your engineering, security and compliance stakeholders.