Identity and access management, or IAM, is the set of policies, processes, and technologies used to control who can access systems, applications, and data. IAM matters because identity is now one of the main security boundaries in modern cloud and hybrid environments.
What is Identity and Access Management (IAM)?
IAM covers how users, administrators, service accounts, and devices are identified, authenticated, authorized, reviewed, and removed over time. It includes account lifecycle management, role assignment, access reviews, federation, single sign-on, privilege management, and strong authentication.
Without strong IAM, organizations struggle to enforce least privilege, detect misuse, and protect critical systems from stolen or overpowered accounts.
Core IAM Functions
Core functions include identity provisioning, authentication, authorization, role-based access control, access reviews, MFA, privileged access controls, and deprovisioning when access is no longer needed.
IAM vs. MFA
MFA is one security control within the broader IAM discipline. IAM covers the full identity and access lifecycle, while MFA specifically strengthens authentication.
Frequently Asked Questions
Why is IAM so important in cloud environments?
Cloud systems rely heavily on identities, roles, and permissions. Mismanaged accounts or overbroad privileges can expose data and infrastructure even when traditional network controls are strong.
What is the biggest IAM mistake?
One of the biggest mistakes is granting excessive access and failing to review or remove it as roles, vendors, and systems change over time.
