What is Identity and Access Management?

Identity and access management (IAM) is how organizations authenticate users, authorize what they can do, and audit what they did. It includes directories, SSO, MFA, provisioning, role and attribute‑based access control, and policy engines. When implemented correctly, IAM is invisible to the end user. When done poorly, it leads to shadow IT, over‑privileged accounts, and security breaches.

Modern IAM is “zero trust” by design. Assume every request could be hostile, then verify the device posture, network, and behavior continuously. Require step‑ups for sensitive actions. Limit blast radius with least privilege and just‑in‑time access. Logs are gold to investigate and prove compliance.

Need to onboard external users or customers? Bind accounts to real people, not just emails. Use strong identity verification for high‑risk roles, and liveness checks to kill spoof attempts in their tracks. For admins and payout owners, mandate hardware‑backed authentication. IAM is not a project, it’s an operating posture.