Identity & Access Management
What is IAM (Identity and Access Management)?
IAM (Identity and Access Management) is the framework of policies and technologies that ensures the right identities have the right access to the right resources at the right time. It covers how users are created, authenticated, authorized, and audited across an organization's applications and systems.
The core pillars of IAM
IAM is usually described in four pillars. Identity governance and administration manages the lifecycle of accounts — creating, updating, and deprovisioning them. Authentication proves who a user is. Authorization enforces what they can access, often via roles and policies. And auditing records who did what, for compliance and incident response.
Together these pillars answer a single question on every request: is this specific identity allowed to perform this specific action on this specific resource, right now? A mature IAM system makes that decision consistently across every app.
Workforce IAM vs. customer IAM (CIAM)
Traditional IAM secures an organization's own employees and systems — think Okta or Microsoft Entra managing staff access. Customer IAM (CIAM) instead secures the end users of an application you build and sell: sign-up, login, profile, and consent for potentially millions of external users.
The distinction matters because the requirements differ: CIAM prioritizes frictionless sign-up, scale, branding, and privacy, while workforce IAM prioritizes governance, provisioning, and least-privilege controls. Developer-focused platforms like Authdog are CIAM: identity for the users of the products you ship.
Why IAM matters
The majority of breaches involve compromised or misused credentials, which makes identity the primary security perimeter for modern cloud applications. IAM reduces that risk by centralizing authentication, enforcing least privilege, requiring MFA, and producing an audit trail — while also unblocking enterprise sales, where SSO and provisioning are hard requirements.
Frequently asked questions
- What are the four pillars of IAM?
- The four pillars are typically identity governance and administration (lifecycle management), authentication (verifying identity), authorization (enforcing access), and auditing/monitoring (recording activity for compliance).
- What is the difference between IdP and IAM?
- An identity provider (IdP) is one component that authenticates users and issues identity tokens. IAM is the broader discipline and framework that includes the IdP plus provisioning, authorization, governance, and auditing.
- What is the difference between IAM and CIAM?
- IAM secures an organization's internal workforce and systems. CIAM (Customer IAM) secures the external end users of an application you build, prioritizing scalable sign-up, login, branding, and privacy.
Related terms
Add auth to your app in minutes
Authentication, SSO, MFA, RBAC, SCIM, and multi-tenant identity — with developer-first APIs and a console non-devs can use.