What Is Identity and Access Management (IAM)?

Identity and Access Management (IAM) is the discipline of making sure the right people and systems have the right access to the right resources, at the right time, and for the right reasons. It covers how identities are created, authenticated, authorized, governed, and eventually removed.

The core building blocks

• Authentication proves who someone is (passwords, MFA, passkeys).
• Authorization decides what they can do once authenticated.
• Lifecycle and provisioning create, update, and deprovision accounts, often automated from an HR system through SCIM.
• Governance reviews and certifies access so it does not drift out of control over time.
• Federation and SSO let one identity work across many applications.

Workforce vs customer identity

IAM usually refers to workforce identity: employees, contractors, and the internal apps they use. The customer-facing equivalent is CIAM, which optimizes for sign-up conversion and scale rather than internal governance. Adjacent disciplines include Privileged Access Management for admin accounts and Identity Governance for access reviews.

Why it matters

Most breaches involve stolen or misused credentials, which is why identity has become the primary security perimeter. See our research data points for the numbers, and our Zero Trust explainer for the architecture that puts identity at the center.

Where to start

Browse workforce IAM platforms, or use the vendor selector to narrow a shortlist by your requirements.