Microsoft Entra is a family of identity and access management (IAM) products produced by Microsoft. One of the rising leaders in IAM technology, Entra helps organizations implement robust security protocols governing access to critical systems. Below, we’ll go over Microsoft Entra’s purpose, its key components, its differences from traditional Active Directory, and its role in modern identity management.
Understanding Microsoft Entra and Its Ecosystem
What Is Microsoft Entra?
Microsoft Entra is a family of cloud-based identity and access management services that cover the four critical phases of mature end-to-end access across organizational systems: Zero Trust access controls, secure access for employees, secure access for customers and partners, and secure access in any cloud. With Entra, organizations can ensure secure access across users, apps, and devices. Entra fits into Microsoft’s Zero Trust architecture by offering powerful security at all four key levels of identity management, preventing dangerous breaches.
The Microsoft Entra Product Family
- Entra ID: provides identity, authentication, policy, and protection to verified users, devices, apps, and other resources.
- Entra ID Governance: automates access requests, assignments, and reviews and protects key assets with identity lifecycle management.
- Entra External ID: allows external users to access business resources or consumer apps and manages customer identity and access management (CIAM).
- Entra Workload ID: allows organizations to offer access to workload identities such as applications, services, and containers with adaptive and customizable policies.
What Is Microsoft Entra ID?
Microsoft Entra ID is the primary product of the Entra family. Entra ID is a cloud-based identity and access management (IAM) solution that creates the essential IAM policies and permissions of an organization, governing access and security.
Entra ID authenticates and authorizes users via sophisticated authentication protocols that include features such as self-service password reset, multi-factor authentication (MFA), conditional access policies, and password-free authentication. Entra ID is the next step up from an on-premises Active Directory, as Entra operates in the cloud and offers a more sophisticated flat organizational structure tailored specifically to the client.
Microsoft Entra ID vs. Active Directory
Core Differences
There are a few key differences between Entra ID and a traditional Active Directory. The first is deployment: while Active Directories are on-premises directory services that focus on local networks, Entra ID is cloud-native and more comprehensive. In terms of communication, an Active Directory communicates via LDAP while Entra ID uses REST APIs.
An Active Directory also has a hierarchical arrangement with objects sorted into organizational units (OUs), whereas Entra ID uses a flat organizational structure with the core component being the “tenant,” an exclusive instance of Entra ID created for one organization.
Authentication and authorization models also differ between ADs and Entra: an AD utilizes protocols such as NTLMv2 and Kerberos while Entra uses advanced protocols such as OpenID Connect, OAuth, and SAML; meanwhile, ADs authorize users by assessing permissions in security groups, while Entra uses both security groups and new features like Microsoft 365 Groups and pre-built Entra ID roles to authorize users.
Hybrid Active Directory Environments
Though entirely cloud-based directory environments are possible, many organizations hybridize on-premises AD and Entra ID functions. Organizations can integrate an existing AD with Entra via Entra ID Connect, a tool in the Entra family that synchronizes identity data from an on-premises AD into Entra ID. This allows users the ability to employ both cloud-only and hybrid user objects that can grant them access on and off-premises.
Who Uses Microsoft Entra ID?
IT Administrators
IT administrators use Entra ID for a variety of purposes, including managing access policies, identity governance, and monitoring. Admins oversee critical functions such as user setup, group management, and permission configurations, having control over tools such as multi-factor authentication.
Application Developers
Application developers use Entra ID to enable secure sign-ins and app integrations via Microsoft identity platform. This ensures seamless connection between apps and user credentials. App developers can also create personalized experiences for users and the organization based on specific company data.
Business End Users
Business end users frequently use Entra ID when accessing common Microsoft resources such as Microsoft 365, SaaS apps, and corporate resources. Commonly-used systems such as Teams, SharePoint Online, and others all use Entra ID for security and IAM.
Key Benefits and Importance of Microsoft Entra ID
Centralized Identity and Access Management
Entra ID offers organizations secure and centralized IAM services. With Entra, organizations can simplify user provisioning and make use of time-saving features such as single sign-on (SSO), which allows users to access systems with a single set of user credentials.
Enhanced Security Through Zero Trust Principles
Entra provides enhanced security due to its Zero Trust architecture. Key features of Entra ID such as conditional access, MFA, and risk-based authentication help to prevent unwanted access and security breaches.
Support for Hybrid and Multi-Cloud Environments
With Entra, organizations can easily create hybrid on-premises and multi-cloud environments. Entra allows for seamless access across on-premises, Azure, and other cloud-based systems. It can integrate with various on-premises systems and other cloud-based IAMs like Okta.
Compliance and Governance
Entra helps organizations meet vital compliance and governance regulations. With frequent reporting, auditing, and role-based access control (RBAC) services, Entra users can maintain compliance with security regulations and avoid crippling financial or legal consequences.
Scalability and Resilience
Entra is a scalable and resilient IAM software. Its features include multiple cloud-native redundancies and failover protocols to swiftly remediate issues or periods of identity downtime.
Getting Started with Microsoft Entra ID
To access Microsoft Entra ID, you can either use the Entra ID portal or access the Microsoft 365 admin center, as Entra is included with a Microsoft 365 subscription.
If you plan to adopt Entra or set up hybrid migration with an existing AD, follow key best practices such as assessing your current IAM environment, migrating users and apps in stages to prevent loss of function, and making use of Entra Connect as an integration tool. To learn more, read Microsoft Entra’s fundamentals documentation and consult other major cybersecurity resources.
