Cloud Identity & Access Management (IAM) Explained

Cloud Identity & Access Management (IAM)

1 min readPublished 22 Jul 2026

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In the cloud, identity is the new perimeter. There's no office wall — access is granted by proving who you are and what you're allowed to do.

Interactive explainer

Microsoft Entra ID

Cloud identity (formerly Azure AD) behind Microsoft 365 and Azure.

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1. Cloud identity provider

Formerly Azure AD.

Microsoft Entra ID (previously Azure Active Directory) is Microsoft's cloud identity and access service behind Microsoft 365 and Azure. It is NOT a cloud-hosted domain controller — it's a modern, internet-facing identity platform using OAuth 2.0/OpenID Connect/SAML rather than Kerberos/LDAP.

Check your understanding

1. Microsoft Entra ID is best described as…

2. What evaluates signals like device, location and risk to allow or block sign-in?

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Microsoft Entra ID Active Directory CompTIA Security+

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The core ideas

Identities — users, groups and workload/service identities.
Roles & policies — grant permissions to roles, then assign identities to roles (RBAC), applying least privilege.
MFA & Conditional Access — require strong authentication and evaluate risk signals before granting access.
Federation & SSO — one identity across many services using tokens (OAuth/OIDC/SAML).

Cloud IAM builds on Security+ identity concepts and is central to the shared responsibility model.

Interview Intelligence

How this topic actually shows up in interviews — and how to demonstrate you understand it.

Why employers ask about this

Most cloud breaches trace back to identity and over-permissioned access. Employers rate IAM understanding highly.

Technical questions

Explain least privilege and how you'd apply it in the cloud.+

Grant roles only necessary permissions, use RBAC, require MFA, and review access regularly.

Behavioural questions

Tell me about tightening access for a team.+

STAR: the over-permissioned state, moving to role-based least privilege + MFA, and reduced risk.

Real-world scenarios

“A developer has full admin rights they don't need.”+

Expected answer: Move to a scoped role with least privilege and enable MFA/Conditional Access.

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Employability Intelligence

Where this knowledge takes you — the jobs, skills and certifications it feeds into.

Relevant roles

Cloud EngineerSecurity EngineerAzure Administrator

Skills you're proving

IAMLeast privilegeMFA & RBAC

Recommended certifications

CompTIA Security+

Career progression

Cloud Fundamentals → Security Engineer/Cloud Security → Architect.

What employers expect

That you understand cloud concepts well enough to be productive and safe on Azure or AWS from day one.

Frequently asked questions

Why is identity called the new perimeter?

Cloud has no network boundary; access is controlled by verifying identity and permissions instead.

What is least privilege in IAM?

Granting each identity only the permissions it needs — nothing more — to limit damage if it's compromised.

How do roles work in cloud IAM?

Permissions are attached to roles; identities are assigned roles (RBAC), keeping access consistent and auditable.

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Missiora is an AI Employability Intelligence platform. Our resources are researched and reviewed by the Missiora team to help you measure, improve and prove your career readiness.