What Is Microsoft Entra ID? How It Replaces Azure AD

Introduction

Microsoft Entra ID is the new name for Azure Active Directory, Microsoft's cloud-based identity and access management service that helps businesses control who can access their applications, data, and resources. If you've been wondering what is Entra ID and how it differs from what you've used before, the short answer is that the core functionality remains intact while the branding, feature set, and strategic direction have all expanded significantly. Microsoft made this rebranding official in 2023 as part of a broader effort to unify its security and identity product family under the Entra umbrella. For small and mid-sized businesses relying on Microsoft 365 and Azure services, understanding this change is essential for staying secure and compliant.

What Is Microsoft Entra ID?

Microsoft Entra ID is a cloud-native identity and access management platform that serves as the backbone for authentication and authorization across Microsoft's ecosystem and thousands of third-party applications. Originally launched as Azure Active Directory in 2013, the service was designed to give organizations a centralized way to manage user identities, enforce security policies, and enable single sign-on across cloud and on-premises environments. When Microsoft rebranded it to Entra ID in July 2023, the company wasn't simply slapping a new label on an old product — it was signaling a shift toward a more comprehensive identity security strategy that goes beyond traditional directory services. Entra ID now sits at the center of the Microsoft Entra product family, which also includes Entra External ID, Entra ID Governance, Entra Permissions Management, and Entra Verified ID.

At its core, Entra ID manages the digital identities of employees, partners, customers, and even devices and applications within an organization. It handles tasks like verifying that a user is who they claim to be, determining what resources that user is allowed to access, and enforcing conditional access policies that take context into account — such as the user's location, device health, and risk level. For SMBs, this means having enterprise-grade identity protection without needing a dedicated security team to build and maintain it from scratch. Entra ID integrates natively with Microsoft 365, Azure, Dynamics 365, and over 3,000 pre-integrated SaaS applications including Salesforce, Dropbox, ServiceNow, and Zoom, making it the single source of truth for identity across a modern business technology stack.

How Microsoft Entra ID Works

Entra ID operates as a multi-tenant, cloud-based directory service that stores identity information and enforces access policies in real time. When a user attempts to sign in to an application — whether that's Outlook, SharePoint, or a third-party SaaS tool — Entra ID intercepts the authentication request and runs it through a series of checks. First, it verifies the user's credentials using the configured authentication method, which might be a password combined with a multi-factor authentication prompt, a passwordless method like Windows Hello, or a FIDO2 security key. Once identity is confirmed, Entra ID evaluates any Conditional Access policies that apply to that user, that application, and that specific sign-in context before deciding whether to grant access, require additional verification, or block the request entirely.

The service also maintains a continuous risk assessment engine powered by Microsoft's global threat intelligence network, which processes trillions of signals per day from across Microsoft's cloud infrastructure. This engine assigns risk scores to sign-in events and user accounts, flagging anomalies like impossible travel, unfamiliar sign-in locations, or credentials that appear in known breach databases. Administrators can configure Identity Protection policies that automatically respond to these risk signals — for example, requiring a password reset when a user account is flagged as high risk. For businesses that still run on-premises Active Directory, Entra ID can be connected through Microsoft Entra Connect, a synchronization tool that keeps on-premises identities in sync with the cloud directory, enabling hybrid identity scenarios without forcing a full migration to the cloud.

Step-by-Step Guide to Getting Started With Microsoft Entra ID

1. Assess Your Current Identity Environment: Before making any changes, take stock of what identity infrastructure you currently have in place, including whether you're running on-premises Active Directory, standalone Microsoft 365, or a mix of both. Understanding your starting point will determine whether you need Entra Connect for hybrid sync or whether a cloud-only deployment is sufficient for your organization.
2. Choose the Right Entra ID License Tier: Microsoft Entra ID is available in three main tiers — Free, P1, and P2 — each offering progressively more advanced features like Conditional Access, Identity Protection, and Privileged Identity Management. Most SMBs benefit most from P1, which is included in Microsoft 365 Business Premium and covers the core security features that significantly reduce identity-related risk.
3. Enable Multi-Factor Authentication for All Users: Navigate to the Microsoft Entra admin center and enable Security Defaults or configure Conditional Access policies that require MFA for every user sign-in. This single step eliminates the vast majority of account compromise attacks, as Microsoft's own data shows MFA blocks over 99.9 percent of automated credential attacks.
4. Configure Conditional Access Policies: Set up policies that define the conditions under which users can access specific applications, such as requiring a compliant device, blocking access from high-risk locations, or mandating MFA for administrator accounts. Start with Microsoft's recommended policy templates, which are available directly in the Entra admin center, and customize them to match your organization's risk tolerance and business requirements.
5. Set Up Single Sign-On for Business Applications: Add your most-used SaaS applications to Entra ID's application gallery and configure single sign-on so users can access all their tools with one set of credentials. This reduces password fatigue, decreases help desk tickets related to forgotten passwords, and gives IT administrators a single place to revoke access when an employee leaves the company.
6. Enable Self-Service Password Reset: Configure Self-Service Password Reset so users can securely reset their own passwords without calling the help desk, using verification methods like an authenticator app, email, or phone number. This feature alone typically saves IT teams dozens of hours per month while also improving the user experience for remote and hybrid workers who can't easily reach IT support.
7. Review Access Regularly With Access Reviews: Use Entra ID Governance's Access Reviews feature to periodically audit who has access to sensitive applications and groups, and automatically remove access for users who no longer need it. Scheduling quarterly reviews for privileged roles and annual reviews for general application access helps maintain a least-privilege security posture without requiring constant manual oversight from your IT team.

Microsoft Entra ID Plans Compared

Best Practices for Microsoft Entra ID

• Enable MFA Immediately: Turn on multi-factor authentication for every user account before configuring anything else, as this is the single most impactful security action you can take in Entra ID.
• Apply the Principle of Least Privilege: Assign users only the permissions they need to perform their job functions and avoid giving broad administrative roles to accounts used for everyday work.
• Monitor Sign-In Logs Regularly: Review Entra ID's sign-in and audit logs on a consistent schedule to catch suspicious activity early, before a compromised account causes significant damage.
• Use Named Locations in Conditional Access: Define your trusted office IP ranges as named locations so you can build smarter access policies that treat sign-ins from known locations differently than sign-ins from unexpected regions.
• Protect Privileged Accounts With Dedicated Admin Accounts: Require administrators to use separate, dedicated accounts for administrative tasks rather than performing privileged operations from the same account they use for email and daily work.

Frequently Asked Questions

Is Microsoft Entra ID the Same as Azure Active Directory?

Yes, Microsoft Entra ID is the new name for Azure Active Directory, rebranded by Microsoft in July 2023. The underlying technology, features, and licensing tiers remained the same at the time of the rename, though Microsoft has continued to add new capabilities to the platform since then. If you were already using Azure AD, you are already using Entra ID — no migration or action was required on the part of existing customers. Microsoft updated all product documentation, admin portals, and API references to reflect the new naming convention.

Do SMBs Really Need Microsoft Entra ID?

Any business using Microsoft 365 is already using Entra ID at some level, since it serves as the identity layer behind every Microsoft 365 account. The real question for SMBs is whether they're taking advantage of the security features available to them, particularly Conditional Access and multi-factor authentication, which require at least the P1 license tier. Small businesses are increasingly targeted by credential-based attacks precisely because attackers know that smaller organizations often have weaker identity controls than enterprises. Investing in proper Entra ID configuration is one of the most cost-effective ways an SMB can dramatically reduce its cybersecurity risk.

What Happened to On-Premises Active Directory?

On-premises Active Directory Domain Services remains a separate product that has not been renamed and continues to be supported by Microsoft for organizations that need it. Entra ID is a cloud-based service and is not a direct replacement for on-premises AD in environments that depend on domain-joined computers, Group Policy Objects, or Kerberos authentication for legacy applications. Many organizations run both systems simultaneously in a hybrid configuration, using Microsoft Entra Connect to synchronize identities between the two. Microsoft's long-term direction clearly favors cloud-first identity, but on-premises AD will remain supported for the foreseeable future.

What Is the Difference Between Entra ID P1 and P2?

Entra ID P1 includes Conditional Access, self-service password reset, hybrid identity support, and advanced group management features, making it the right choice for most SMBs looking to strengthen their security posture. Entra ID P2 adds Identity Protection, which provides risk-based Conditional Access and automated responses to detected threats, as well as Privileged Identity Management for just-in-time access to sensitive roles. For organizations handling sensitive data, operating in regulated industries, or wanting the most automated approach to identity risk management, P2 offers meaningful additional protection. Microsoft 365 Business Premium includes Entra ID P1, while P2 is available as a standalone add-on or as part of Microsoft 365 E5.

How Does Entra ID Handle Passwordless Authentication?

Entra ID supports several passwordless authentication methods including Microsoft Authenticator app sign-in, Windows Hello for Business, and FIDO2 security keys from hardware vendors like Yubico. These methods replace the traditional password with a cryptographic credential that is tied to a specific device and verified through biometrics or a PIN, making phishing attacks far less effective since there is no password to steal. Setting up passwordless authentication in Entra ID involves enabling the desired authentication methods in the Entra admin center and then guiding users through the registration process for their preferred method. Microsoft has made passwordless the default recommendation for new deployments because it simultaneously improves security and reduces the friction users experience when signing in throughout the day.

If your business is ready to take full advantage of Microsoft Entra ID's security capabilities but isn't sure where to start, Always Beyond can help you assess your current identity setup, configure the right policies, and keep your environment protected as your needs evolve — contact Always Beyond today.