What is the difference between IAM and PAM?

IAM governs access for all users across all applications, while privileged access management (PAM) focuses on high-risk accounts such as administrators, service accounts, and root access. PAM adds controls like credential vaulting, session recording, and just-in-time elevation. Most organizations need both, with IAM as the foundation.

Is IAM only for large enterprises?

No. Any organization with more than a handful of SaaS applications benefits from centralized identity, because password sprawl and manual offboarding become risks quickly. Cloud-delivered IAM has made enterprise-grade controls practical for mid-sized teams as well.

What is the difference between authentication and authorization?

Authentication verifies identity: proving you are who you claim to be, for example with a password and a second factor. Authorization happens after authentication and decides what you are allowed to do, based on roles and policies. Strong IAM requires both to work together.

Identity and Access Management (IAM)

What is Identity and Access Management (IAM)?

IAM is the framework of policies and technology that verifies who users are and controls what they can access across an organization.

Last updated: 13 July 2026

How IAM works

IAM rests on two core functions. Authentication answers the question of who a user is, typically through passwords, multi-factor authentication, or passwordless methods such as passkeys. Authorization answers what that verified user is allowed to do, based on roles, group memberships, attributes, and policies defined by the organization.

In practice, an IAM platform maintains a central directory of identities and connects it to the applications people use. When someone signs in, the platform verifies their credentials, evaluates policy, and issues a session or token that applications trust. Protocols such as SAML, OpenID Connect, and SCIM let this happen consistently across hundreds of cloud and on-premises systems.

Why IAM matters

Most modern breaches begin with a compromised identity rather than a broken firewall. Stolen passwords, orphaned accounts, and excessive permissions give attackers a quiet path into critical systems. Centralized IAM shrinks this attack surface by enforcing strong authentication everywhere and keeping access aligned with what each person actually needs.

IAM also carries a heavy compliance and productivity load. Regulations such as ISO 27001, KVKK, and GDPR expect organizations to demonstrate who has access to what and why. At the same time, employees expect one login that works across every tool, and IT teams need onboarding and offboarding to take minutes rather than days.

IAM in practice

A typical IAM rollout starts by consolidating identities into one source of truth, then layering on single sign-on for the most used applications, enforcing MFA, and automating provisioning and deprovisioning through SCIM. From there, organizations add adaptive policies that adjust authentication requirements based on risk signals such as location, device, and behavior.

The most common pitfalls are treating IAM as a one-time project instead of an ongoing program, and leaving legacy applications outside the platform. Bridging older protocols such as LDAP, RADIUS, and Kerberos into the same policy engine closes those gaps. Monosign covers this full spectrum, from SAML and OIDC federation to SCIM provisioning and legacy protocol bridges, in cloud or self-hosted deployments.

Frequently asked questions

What is the difference between IAM and PAM?: IAM governs access for all users across all applications, while privileged access management (PAM) focuses on high-risk accounts such as administrators, service accounts, and root access. PAM adds controls like credential vaulting, session recording, and just-in-time elevation. Most organizations need both, with IAM as the foundation.
Is IAM only for large enterprises?: No. Any organization with more than a handful of SaaS applications benefits from centralized identity, because password sprawl and manual offboarding become risks quickly. Cloud-delivered IAM has made enterprise-grade controls practical for mid-sized teams as well.
What is the difference between authentication and authorization?: Authentication verifies identity: proving you are who you claim to be, for example with a password and a second factor. Authorization happens after authentication and decides what you are allowed to do, based on roles and policies. Strong IAM requires both to work together.