Cloud Security
What Is CIEM? A Guide for 2026
What Is CIEM? #
CIEM (cloud infrastructure entitlement management) is the practice of managing, monitoring, and right-sizing access permissions across cloud environments. If IAM is the system that grants access to cloud resources, CIEM is the layer that continuously evaluates whether that access is still appropriate.
The problem CIEM solves is straightforward: cloud permissions accumulate. A developer gets admin access to debug a production issue on a Friday afternoon, and that access is still there six months later. A service account gets broad permissions during initial setup, and nobody revisits them. An IAM role created for a proof of concept gets attached to a production workload. Multiply this across hundreds of identities and three cloud providers, and you've got thousands of entitlements that nobody can reason about manually.
Research from Microsoft's Entra Permissions Management team (now part of Microsoft Defender for Cloud) consistently showed that the vast majority of granted cloud permissions go unused. Most organizations find that identities use a tiny fraction of their granted access - the rest is attack surface that exists for no operational reason. CIEM tools exist to close that gap by inventorying every identity and entitlement, analyzing actual usage, and recommending or enforcing least-privilege access.
In this article:
Why Does CIEM Matter? #
Cloud environments have an identity problem that traditional tools weren't built to handle. On-premises, you had a finite number of users, a handful of service accounts, and permissions managed through Active Directory or LDAP. In the cloud, the number of identities explodes. You're dealing with human users, service accounts, IAM roles, Lambda execution roles, Kubernetes service accounts, cross-account assume-role chains, and federated identities from your IdP - all interacting with hundreds of cloud services, each with its own permission model.
The scale alone makes manual review impractical. AWS IAM defines thousands of individual actions across its services, and the list grows with every new service launch. GCP and Azure have similarly large permission sets. When you combine the number of identities with the number of possible permissions across multiple cloud providers, you get an entitlement matrix that's too large for a human to audit. A team we talked to recently had over 40,000 IAM policies across their AWS accounts. They had no idea which ones were actively used.
The security implications are real. Overprivileged identities are a top attack vector in cloud breaches. An attacker who compromises a service account with
s3:* permissions can exfiltrate data from every bucket in the account, even if that service account only needed s3:GetObject on a single bucket. CIEM reduces this blast radius so that permissions match actual usage.Beyond security, there's a compliance angle. Frameworks like SOC 2, ISO 27001, and PCI-DSS require organizations to demonstrate least-privilege access controls and regular access reviews. Doing that manually across multi-cloud environments doesn't scale. CIEM automates the evidence collection and continuous monitoring that auditors expect.
What Are the Key Capabilities of CIEM Tools? #
CIEM tools generally cover four areas, though the depth varies significantly between vendors.
Entitlement Discovery and Visibility #
Before you can right-size permissions, you need to see them. CIEM tools inventory all identities (human and non-human) and map their effective permissions across cloud providers. This includes direct policy attachments, inherited permissions from groups and roles, resource-based policies, permission boundaries, and SCPs (service control policies). The effective permission of an identity is the intersection of all these layers, which is why calculating it manually is error-prone.
Usage Analytics and Permission Gap Analysis #
The core value of CIEM is comparing what an identity can do with what it does. CIEM tools ingest cloud activity logs (CloudTrail in AWS, Audit Logs in GCP, Activity Logs in Azure) and correlate them with granted permissions. The output is a gap analysis: this service account has 847 permissions but has only used 12 in the last 90 days. Those 835 unused permissions are candidates for removal.
Right-Sizing Recommendations and Remediation #
Based on usage analysis, CIEM tools generate least-privilege policy recommendations. Some tools can generate a replacement IAM policy that includes only the permissions the identity used during the observation period. The more mature tools offer automated remediation, where they can apply the right-sized policy directly (with approval workflows). Others stop at recommendations and leave the implementation to your team.
Anomaly Detection #
CIEM tools monitor for unusual access patterns: an identity that suddenly uses permissions it hasn't touched in months, a service account authenticating from an unexpected region, or a role being assumed by a principal that hasn't used it before. This overlaps with cloud threat detection, and most CIEM tools that offer anomaly detection use some form of behavioral baseline modeling.
How Is CIEM Different from CSPM, IAM, and PAM? #
These four acronyms show up in the same conversations, and the boundaries between them have blurred as vendors bundle capabilities. Here's how they differ in practice.
The way we think about it: IAM is the control plane for granting access. PAM adds extra controls around the most sensitive accounts. CSPM looks at your overall cloud security posture, including network rules, encryption settings, and public exposure. CIEM zooms in specifically on entitlements and asks whether the access you've granted matches the access that's needed.
In practice, CIEM and CSPM are converging. Most cloud-native application protection platforms (CNAPPs) now bundle both. But the distinction matters because CSPM can tell you that an S3 bucket is publicly accessible, while CIEM tells you that 14 service accounts have write access to that bucket and only 2 have used it in the past quarter. They answer different questions about the same infrastructure.
Which CIEM Tools Are Worth Knowing? #
The CIEM market has consolidated significantly. Most standalone CIEM vendors have been acquired by larger security platforms. Here are the ones that matter in 2026.
Microsoft Defender for Cloud now includes CIEM capabilities through its Defender CSPM plan, following the retirement of Entra Permissions Management in late 2025 (originally acquired as CloudKnox in 2021). The CIEM features provide cross-cloud visibility into permissions across Azure, AWS, and GCP. If your organization is already in the Microsoft security ecosystem, this is the natural fit.
CrowdStrike Falcon Cloud Security bundles CIEM with CSPM and CWPP as part of the Falcon platform. CrowdStrike's strength is correlating identity-based threats with endpoint telemetry - if a compromised workload starts using unusual IAM permissions, Falcon can connect those signals.
Tenable Cloud Security (which acquired Ermetic's CIEM technology in 2023 for approximately $265 million) focuses on entitlement visualization and toxic combination analysis - identifying where overprivileged identities intersect with other risk factors like public exposure or known vulnerabilities.
Zscaler CIEM (built on its Trustdome acquisition) integrates entitlement management with Zscaler's zero-trust network access platform. The positioning is identity-based segmentation: permissions aren't just about what a user can access, but how they get there.
Palo Alto Cortex Cloud (formerly Prisma Cloud, renamed in February 2025) and Wiz both include CIEM capabilities within their CNAPP platforms. These are the options teams tend to evaluate when they want one platform covering CSPM, CIEM, vulnerability management, and workload protection together.
The CIEM market is projected to reach $7.5 billion by 2028, up from $1.2 billion in 2023. That growth reflects how central entitlement management has become to cloud security strategies.
How Does CloudQuery Fit into CIEM? #
CloudQuery Platform isn't a CIEM tool in the traditional sense - we don't do behavioral analytics or automated permission remediation. What we do provide is the data foundation that makes CIEM practices possible with the tools and workflows your team already uses.
CloudQuery syncs IAM configuration data from AWS, GCP, Azure, and 70+ other sources into a SQL-queryable database. That means you can write queries against your actual IAM state across every cloud account and provider, in one place.
Here's what that looks like in practice. Want to find all AWS IAM users with console access but no MFA enabled? That's a SQL query joining
aws_iam_users with aws_iam_user_mfa_devices. Want to identify IAM roles that haven't been assumed in 90 days? Query aws_iam_roles and check the last_used_date field. Want to find GCP service accounts with owner-level permissions? Join gcp_iam_service_accounts with the IAM policy bindings table.These queries are the building blocks of entitlement visibility. And with CloudQuery Policies, you can run them continuously. Set up a policy that flags any IAM user without MFA, any service account with admin privileges, or any cross-account role with overly broad trust policies. When a violation appears, CloudQuery can trigger notifications or remediation workflows through Automations.
The advantage of this approach is flexibility. CIEM vendors give you their predefined checks and dashboards. CloudQuery gives you the raw data in SQL, so you can build the exact checks your organization needs. If your compliance team has specific requirements about service account key rotation or cross-account access patterns, you write a SQL query for it - no waiting for a vendor to add that specific check to their product.
We've written in more detail about continuous AWS IAM security best practices and how CloudQuery's data layer supports cloud governance workflows. CIEM fits naturally within a broader cloud operations practice that includes visibility, governance, and automated response. For teams that want CIEM-style visibility without committing to a full CIEM platform, CloudQuery's SQL-first approach is a practical starting point.
Build Entitlement Visibility with SQL
Query IAM policies, roles, and entitlements across every cloud account with SQL. Find overprivileged identities and enforce least privilege at scale. Or check out the documentation.
CIEM FAQ #
What does CIEM stand for? #
CIEM stands for Cloud Infrastructure Entitlement Management. It refers to tools and practices for managing, monitoring, and right-sizing access permissions across cloud environments. The term was coined by Gartner to describe a category of solutions focused on cloud identity governance and least-privilege enforcement.
How is CIEM different from CSPM? #
CSPM focuses on cloud misconfigurations broadly: open security groups, unencrypted storage, public endpoints. CIEM focuses specifically on identity and access: who has permissions to what, whether those permissions are used, and whether they follow least privilege. CSPM secures the infrastructure surface; CIEM secures who can interact with it. Most modern CNAPPs bundle both capabilities together.
Do I need CIEM if I already use IAM? #
IAM is the mechanism for granting and revoking access. CIEM is the analytics layer that tells you whether the access you've granted is appropriate. Think of IAM as the door locks and CIEM as the audit that checks whether every key that was issued is still needed. Without CIEM (or something like it), you're granting permissions but never systematically reviewing whether they're still warranted.
What is least-privilege access and why does CIEM care about it? #
Least-privilege access means giving an identity only the permissions it needs to do its job and nothing more. CIEM tools enforce this by analyzing actual permission usage (through cloud activity logs) and comparing it to granted permissions. The gap between the two is your excess privilege, and reducing it shrinks your attack surface. Most organizations find that the vast majority of their granted permissions go unused.
Can CIEM work across multiple cloud providers? #
Yes, multi-cloud support is a core feature of most CIEM tools. AWS, GCP, and Azure each have different permission models (IAM policies vs. IAM roles and bindings vs. RBAC), and CIEM tools normalize these into a unified view. This is where CIEM adds the most value - managing entitlements within a single cloud is hard enough, but doing it consistently across three providers with different permission semantics is where manual approaches break down completely.
What's the relationship between CIEM and zero trust? #
Zero trust assumes no identity should be trusted by default, and access should be granted based on continuous verification. CIEM supports zero trust so that standing permissions (permanent access grants) are minimized. Some CIEM tools offer just-in-time (JIT) access, where permissions are granted temporarily for a specific task and automatically revoked afterward. This aligns with zero trust's principle of granting the minimum access for the minimum time needed.