Microsoft Entra ID is the new name for Azure Active Directory — but under the hood, it’s the same identity platform. In July 2023, Microsoft rebranded Azure AD as Entra ID to unify its identity tools under the broader Entra product family and clear up confusion with legacy Active Directory systems.
What changed? Just the name. All features, pricing, and licensing remain exactly the same. If it worked in Azure AD, it still works in Entra ID.
That said, it’s still critical to understand the difference between cloud-based identity platforms like Entra ID and on-premises solutions like Active Directory. Each supports different IT infrastructures — and knowing when to use which is key to building a secure, scalable IAM strategy.
At Hideez, we help organizations get the most out of Microsoft Entra ID with phishing-resistant, passwordless authentication tools. Whether you're securing Windows workstations, remote logins, or cloud applications, our FIDO-certified solutions integrate seamlessly with Entra ID.
So, what exactly is Entra ID? And who is it built for? Keep reading to unpack its core features and see how it compares to traditional Active Directory in real-world environments.
What is Microsoft Entra ID and why the rebrand happened
Microsoft Entra ID is Microsoft’s cloud-based identity and access management (IAM) solution. It serves as the backbone for securing access to apps, data, and resources — whether in the cloud or on-premises.
Formerly known as Azure Active Directory, this platform delivers identity services like single sign-on (SSO), multifactor authentication (MFA), conditional access, and identity protection.
In July 2023, Microsoft officially rebranded Azure AD to Microsoft Entra ID.
The goal? To unify its identity tools under the broader Entra product family, launched in 2022. This umbrella now includes Entra Permissions Management and Verified ID, helping organizations distinguish between on-premises Active Directory and Microsoft’s cloud-native identity platform.
The name may be new, but everything else stays the same.All existing integrations, configurations, and deployments continue to work without changes. Login URLs, APIs, PowerShell cmdlets, and Microsoft Authentication Libraries (MSAL) remain fully supported. The update is purely cosmetic — licensing, SLAs, pricing, and certifications are unaffected.
If your team already uses Azure AD, there's no action required. You can continue as usual while gradually adopting the new Entra ID terminology in documentation and training.
Azure AD vs Active Directory: What’s the difference?
Before diving deeper into Microsoft Entra ID, it’s important to understand one key distinction: Azure Active Directory (now Entra ID) is not the same as traditional Active Directory (AD).
These two systems serve very different purposes — and knowing how they differ is essential if you're planning a secure, future-ready identity strategy.
Active Directory is a legacy, on-premises directory service built for managing Windows domain networks. It uses authentication protocols like LDAP, Kerberos, and NTLM — ideal for internal networks and legacy applications.
Microsoft Entra ID, formerly known as Azure AD, is a cloud-first identity platform. It operates as an Identity-as-a-Service (IDaaS) solution designed for hybrid work, SaaS apps, and multicloud infrastructure.
Let’s look at the core differences.
Architecture:
-
Active Directory uses a hierarchical domain structure — with forests, organizational units, and on-site domain controllers. It depends on physical servers and internal network boundaries.
-
Microsoft Entra ID is flat and tenant-based. It’s built for the cloud, offering global availability, scalability, and no on-prem setup.
Protocol Support:
-
AD sticks to legacy protocols (Kerberos, NTLM, LDAP). That works for traditional environments — but makes integration with modern platforms more difficult.
-
Entra ID supports modern standards like SAML, OAuth 2.0, and OpenID Connect. That means seamless integration with SaaS apps, cloud infrastructure, and third-party services.
In short? Active Directory is your go-to for managing local Windows resources. Entra ID is purpose-built for managing identities in the cloud — across multiple platforms, devices, and environments.
Identity Protection, User Management & App Integration: Where Entra ID Pulls Ahead
Microsoft Entra ID isn’t just a rebrand — it delivers advanced identity protection features that go far beyond what traditional Active Directory can offer.
For starters, Entra ID includes:
-
Risk-based conditional access to block or allow access based on real-time context
-
Machine learning–powered threat detection that flags unusual behavior during sign-in events
-
Privileged Identity Management (PIM) to protect and control admin-level access
These features enable real-time risk scoring and automated responses to suspicious activity — a must for organizations dealing with remote users, BYOD policies, and SaaS sprawl.
User management is another big point of difference.
Active Directory shines when it comes to Group Policy Objects (GPOs) — letting admins manage device settings, security policies, and software installations across a Windows network.
But Entra ID flips the model. It prioritizes cloud-based access management:
-
App-level access policies
-
Device compliance enforcement through Microsoft Intune
-
Dynamic group membership that updates automatically based on user roles or attributes
Result? Less manual admin work and tighter access control across distributed teams.
Application integration tells the same story. Active Directory works well with on-prem apps using LDAP and Windows-integrated auth — but struggles outside that lane. Entra ID supports over 4,000 pre-integrated SaaS apps via the Azure App Gallery. With built-in single sign-on (SSO) support, users can log in once and access tools like Salesforce, ServiceNow, or Google Workspace instantly. And if you need to connect on-prem apps too, Entra ID handles that through Azure AD Application Proxy, though it requires some extra setup.
Authentication and security enhancements in cloud identity management
Authentication & Security: How Entra ID Raises the Bar
Microsoft Entra ID takes cloud identity security to the next level — well beyond passwords and legacy MFA.
Passwordless authentication is front and center.
Users can log in using:
-
Windows Hello for Business (facial recognition or PIN)
-
Push notifications via the Microsoft Authenticator app
Built-in multifactor authentication (MFA) is easy to manage and customize. IT teams can trigger MFA using conditional access policies that factor in real-time signals — like sign-in location, device health, and user risk level.
Security is where Entra ID really stands out. It uses machine learning to detect and block:
-
Password spray attacks
-
Credential stuffing
-
Brute-force login attempts
There’s also smart password protection that stops users from setting weak or compromised passwords — and that works for both cloud and hybrid environments.
Smart lockout is another key feature. It detects unusual behavior and blocks suspicious sign-ins — without locking out legitimate users.
Conditional access gives you fine-tuned control that legacy AD can’t match. You can:
-
Enforce MFA only for high-risk logins
-
Require compliant devices for app access
-
Block access from unfamiliar or foreign IPs
The best part? These rules are dynamic. Powered by Microsoft’s real-time risk engine, Entra ID constantly analyzes behavior patterns, device posture, and login history to adapt your access policies automatically.
Deployment scenarios: when to choose cloud vs on-premises identity solutions
Organizations with a cloud-first infrastructure see the biggest gains from Microsoft Entra ID. If you're already using Microsoft 365, relying on Azure services, or juggling multiple SaaS platforms, Entra ID gives you seamless integration, stronger security, and simplified access management — all from one central hub.
It cuts down IT overhead, streamlines authentication, and enables secure access from anywhere, on any device. That makes it especially powerful for remote and hybrid teams.
That said, traditional Active Directory still plays a vital role — especially for businesses with legacy systems. In sectors like manufacturing and healthcare, older apps and specialized hardware often require Windows-based authentication. Some compliance-heavy environments also demand on-premises data storage or LDAP integration, which Active Directory handles natively.
For most organizations, the smartest move is a hybrid setup. Azure AD Connect allows you to link your existing Active Directory with Entra ID. This way, you can enable single sign-on across both cloud and on-prem systems, modernize at your own pace, and maintain access to critical legacy resources.
Migration Considerations and Hybrid Approaches
Migrating from on-premises Active Directory to Microsoft Entra ID isn’t a quick switch — it’s a strategic transformation. To get it right, you’ll need a clear roadmap, phased execution, and tight coordination across IT and security teams.
It all starts with application discovery. Begin by auditing every app in your environment. Group them by authentication type and assess cloud readiness. Cloud-native apps that already support SAML or OAuth typically migrate without friction. But legacy systems may require additional effort, such as setting up Azure AD Application Proxy or developing custom connectors.
In hybrid environments, Azure AD Connect remains mission-critical. It synchronizes users, passwords, and groups between AD and Entra ID. You can tailor the sync model to fit your security posture — whether it’s password hash sync for simplicity, pass-through authentication for real-time checks, or federation for more granular control.
Tackle each migration stream methodically. Start with users and groups. Enable self-service password reset and transition to dynamic group memberships that update automatically based on user attributes in Entra ID. Next, migrate your apps. Update authentication protocols and modify connection strings to align with cloud identity standards. Finally, modernize device management by replacing Group Policy with Microsoft Intune, enabling centralized, cloud-based configuration and compliance.
Most organizations spread this process out over 12 to 18 months. A phased rollout reduces disruption and gives teams time to troubleshoot issues before scaling up.
Cost analysis and licensing implications
Microsoft Entra ID follows a per-user subscription model, offering multiple pricing tiers to fit different business needs. The free tier supports up to 500,000 directory objects and includes essential identity services — a solid starting point for small teams or pilot programs.
For organizations that need more control, Premium P1 starts at $6 per user/month, unlocking features like conditional access and group management. For advanced capabilities — including identity protection and privileged identity management — Premium P2 is priced at $9 per user/month.
But license fees only tell part of the story.
When evaluating total cost of ownership (TCO), consider the broader financial impact. Entra ID reduces reliance on on-prem domain controllers — which means fewer physical servers, lower energy usage, less cooling, and no more local Windows Server licenses to manage. Over time, these savings add up.
Yes, subscription costs increase OpEx. And some teams may need Microsoft 365 license upgrades. But for most organizations with 200+ users, these costs balance out within two to three years, thanks to reduced IT overhead, fewer manual tasks, and less support burden.
That said, hidden costs still exist. Complex migrations may require professional services — with project budgets ranging from $50K to $500K depending on scope. Training and certifications for IT admins can add another $5K to $15K per person. These are real investments, but the long-term ROI often outweighs them.
Over time, Entra ID pays off through stronger security, fewer password reset tickets, and streamlined access workflows across the business.
Future-proofing your identity infrastructure strategy
Today’s identity infrastructure must be built for more than convenience — it has to support zero-trust security from the ground up. That means verifying every access request in real time, regardless of user, device, or location.
Microsoft Entra ID is purpose-built for this model. It enables continuous authentication, enforces device compliance, and uses real-time risk signals to make smarter access decisions. For organizations navigating hybrid work, global teams, and evolving threat landscapes, cloud-native identity platforms like Entra ID provide long-term flexibility and security.
Artificial intelligence is becoming the next major pillar of identity management. Entra ID already leverages machine learning for anomaly detection, risk scoring, and automated response actions — all without human intervention. As the platform continues to evolve, expect more advanced capabilities like behavioral analytics and predictive threat prevention, giving security teams a head start on stopping identity-based attacks.
Another rising priority: multicloud identity.
With many businesses now running services across AWS, Google Cloud, and Microsoft Azure, managing identity across platforms is a growing challenge. Microsoft Entra ID tackles this with federated identity support, enabling centralized governance and consistent security policies — without locking your organization into a single cloud provider.