What is Entra ID?

As the number of cloud services grows, you end up managing separate IDs and passwords for each one, making it harder to balance convenience and security. Entra ID manages employee accounts in one place and makes logins safer and more convenient through the following capabilities.

• ✓Authentication (identity verification). The foundational function that confirms the person trying to log in is who they claim to be.
• ✓Single sign-on (SSO). A single login lets you use Microsoft 365 and multiple other services directly.
• ✓Multi-factor authentication (MFA). Combining a password with an approval on a smartphone, for example, to prevent impersonation.
• ✓Conditional access. Automatically controls whether access is allowed and whether additional authentication is required, based on location, device, and risk.

Because IDs, passwords, and access permissions are managed together in the cloud, services can be used securely under the same rules whether inside or outside the office.

An analogy: Entra ID as the company "front desk"

Entra ID acts as the "company front desk," verifying identity and letting only authorized people through to each service.

Before / after: password only → MFA

A password-only login can be impersonated if leaked. MFA (multi-factor authentication) adds a phone approval on top of the password to verify identity and prevent impersonation.

Step by step: Conditional Access

Conditional Access assesses location, device, and risk in addition to identity, then automatically allows safe access or requires step-up authentication or blocks suspicious access.

A company with ~400 employees (multiple locations)

Challenge: The number of cloud services in use has grown, and managing separate IDs and passwords for each service has become cumbersome. With more locations and remote workers, there is concern about whether departing employees' accounts have been removed from all services.

Existing environment: Microsoft 365 is in use. Account management is handled individually per service, and disabling accounts on departure is done manually.

• 1Consolidate employee accounts in Entra ID and centrally manage logins to multiple services.
• 2With SSO, a single login enables use of multiple services.
• 3Enable MFA to reduce the risk of impersonation.
• 4On departure, disable the ID and instantly cut off access to all services.

Results: Logging in to each service became simpler, and a departing employee's account can now be cut off from all services in a single action. It also became possible to record who accessed what.

• QWhat is Entra ID (formerly Azure AD)?
  Microsoft Entra ID is a cloud identity platform that centrally manages employee accounts (IDs) and ties together logins to Microsoft 365 and a wide range of cloud services. It is the foundation for controlling who can access which service, and it also serves as the starting point for SASE and Zero Trust.
• QWhat are SSO, MFA, and conditional access?
  SSO (single sign-on) lets a single login use multiple services directly. MFA (multi-factor authentication) combines a password with an approval on a smartphone, for example, to prevent impersonation. Conditional access automatically controls whether access is allowed and whether additional authentication is required, based on location, device, and risk.
• QDo you need it if you already use Microsoft 365?
  Even if Microsoft 365 is already in use, managing separate IDs and passwords per service tends to become cumbersome. By managing accounts centrally with Entra ID, you can tie together logins to multiple services and cut off a departing employee's account from all services in a single action.
• QCan mid-sized companies adopt it?
  Yes. Because switching the entire company over all at once causes confusion, a realistic approach is to proceed in stages: assess the current state, integrate identities, enable MFA, configure conditional access, and operate. We also present a hypothetical model case of a company with about 400 employees across multiple locations.
• QWhat are the benefits and considerations of adoption?
  The benefits include centralized account management, improved convenience through SSO, prevention of impersonation with MFA, instant disabling of departing employees' accounts, and audit support via access logs. On the other hand, you need an initial identity integration design, an understanding of the licensing model, appropriate operational rules and administration skills, and advance communication to employees when introducing MFA.