| Microsoft Defender for Identity is a cloud-based identity security solution that detects suspicious account activity and potential cyberattacks across hybrid IT environments. It helps businesses reduce security blind spots, respond to threats sooner, and protect operations from costly disruption. |
What is Microsoft Defender for Identity?
Its core capabilities include:
- Identity threat detection and response: Uses behavioural analytics and threat intelligence to uncover suspicious activity, including compromised credentials and attempts to gain unauthorized access, helping security teams act before threats spread.
- Protection beyond employee accounts: Monitors privileged users and supported non-human identities, including service accounts that often operate behind the scenes but can become attractive targets for attackers.
- Visibility across hybrid environments: Connects identity security signals from on-premises Active Directory and supported cloud identity systems, helping IT teams uncover risks that might otherwise go unnoticed.
- Faster, more informed investigations: Integrates with Microsoft Defender XDR to connect identity alerts with broader security activity, giving teams the context they need to investigate incidents and respond effectively.
- Proactive identity risk management: Identifies risky configurations and potential attack paths, helping organizations address identity security weaknesses before attackers exploit them.
Why Identity Security Has Become a Business Priority
An attacker doesn’t always need to break through your security defenses. Sometimes, all they need is a legitimate password.
Verizon’s 2025 Data Breach Investigations Report identified credential abuse as the leading known initial access vector, accounting for 22% of breaches in the relevant dataset.
That’s what makes identity attacks difficult to spot. Someone using stolen credentials can appear to be an authorized employee, even to traditional endpoint security tools. For businesses running both Active Directory and cloud environments, disconnected identity monitoring can create blind spots that attackers exploit.
Once inside, attackers can use compromised accounts to gain greater privileges and move between systems. What begins as a single stolen password can escalate into ransomware, data theft, or widespread downtime. The business impact extends well beyond IT, affecting productivity and the systems employees rely on to do their jobs.
Microsoft Defender for Identity helps close these gaps by identifying suspicious identity activity and exposing security weaknesses. Instead of reacting only after damage occurs, IT teams gain the visibility to investigate potential threats earlier, prioritize security improvements, and better understand where their organization remains exposed.
How Microsoft Defender for Identity Turns Suspicious Activity Into Action
From Identity Signals to Security Alerts
Microsoft Defender for Identity starts by monitoring activity across your identity infrastructure. Lightweight sensors installed on supported systems, including Active Directory domain controllers, collect relevant network traffic and Windows security events. These signals are then analyzed through Microsoft’s cloud-based security platform to identify potential threats.
The platform uses behavioural analytics and threat intelligence to recognize activity that doesn’t fit expected patterns. An unusual authentication request or unexpected change to an administrator account, for example, could trigger an alert. This helps IT teams focus on behaviour that warrants investigation instead of sorting through endless activity logs.
For organizations operating across on-premises and cloud environments, visibility doesn’t stop at Active Directory. Supported API integrations, including Okta, extend identity monitoring into additional systems. This helps security teams connect suspicious activity across environments that might otherwise be investigated separately.
Detecting Identity Attacks Before They Spread
Identity attacks often start quietly. An attacker might test stolen passwords or search for accounts with elevated access before attempting anything more damaging.
Microsoft Defender for Identity detects suspicious authentication behaviour and reconnaissance activity, giving security teams an opportunity to investigate before an attacker advances further.
As attackers attempt to expand their access, the platform looks for signs of privilege escalation and lateral movement. This includes unusual administrative changes and suspicious service account activity. Detecting these patterns helps IT teams understand whether an isolated event could be part of a larger attack.
Defender for Identity also recognizes techniques such as Kerberoasting, which targets service account passwords, and Golden Ticket attacks, which abuse Kerberos authentication.
It can also detect DCSync and DCShadow techniques used to target Active Directory. These detections depend on the available security signals and proper configuration.
From Identity Alerts to Incident Response
Detecting suspicious activity is only useful if your team knows what to do next. When Microsoft Defender for Identity identifies a potential threat, it generates an alert with information about the affected accounts.
Through Microsoft Defender XDR, identity alerts can be connected to related security events, helping analysts understand the bigger picture.
Instead of investigating every alert in isolation, security teams can use the Microsoft Defender portal to trace suspicious account activity and identify potentially compromised devices. Advanced threat hunting capabilities help analysts understand how an attack developed, which systems may be affected, and where to focus their response.
When a compromise is confirmed, authorized security teams can take action to contain the threat. Depending on the environment and configured capabilities, this may include disabling an affected account or forcing a password reset.
Supported Microsoft Defender XDR automatic attack disruption capabilities can also initiate certain containment actions, helping reduce the time between detection and response.
Microsoft Defender for Identity Deployment Starts With the Right Foundation
Getting Microsoft Defender for Identity up and running takes more than activating a license. Without the right configuration and monitoring coverage, your IT team could be missing suspicious activity in the very systems you’re trying to protect.
A successful deployment starts with understanding your existing identity infrastructure, confirming licensing requirements, and ensuring the right people can access security information. Taking the time to get these foundations right helps organizations avoid coverage gaps and make their security investment count.
Accessing Microsoft Defender for Identity Through the Defender Portal
Understanding how to access Microsoft Defender for Identity starts in the Microsoft Defender portal.
Administrators can sign in and navigate to Settings > Identities to begin configuration. Initial onboarding requires the Microsoft Entra Security Administrator role, while other authorized security roles provide varying levels of management or read-only access.
New customers are automatically provisioned with Defender for Identity in the portal, but that doesn’t mean monitoring is active.
IT teams still need to deploy or activate sensors on supported identity infrastructure. Microsoft’s recommended sensor version depends on the Windows Server environment, making compatibility checks an important part of preparation.
Once deployed, the next step is confirming that everything works as expected. The Sensor management page helps teams identify connectivity issues and monitoring gaps, while security alerts provide insight into suspicious activity.
Without these checks, an organization could assume its identities are being monitored when important systems remain uncovered.
Microsoft Defender for Identity License Requirements and Costs
A Microsoft Defender for Identity license can be purchased separately or may already be included in your existing Microsoft security subscription.
For businesses investing heavily in Microsoft 365, understanding what’s already covered can prevent unnecessary spending. Microsoft 365 E5 and Enterprise Mobility + Security E5 include Defender for Identity, while Microsoft 365 E3 alone does not.
Microsoft Defender for Identity Licensing Overview
| Licensing Option | Defender for Identity Included | Canadian Pricing Considerations |
|---|---|---|
| Standalone license | Yes | Request pricing from Microsoft or a Cloud Solution Provider |
| Microsoft 365 E5 with Teams | Yes | CAD $81.40/user/month, paid yearly |
| Enterprise Mobility + Security E5 | Yes | Pricing depends on the purchasing agreement |
| Microsoft Defender Suite | Yes | CAD $16.30/user/month, paid yearly, with qualifying base licensing |
| Microsoft 365 E3 alone | No | Additional licensing required |
Pricing reflects Microsoft’s published Canadian rates before applicable taxes. Defender Suite requires eligible base licensing, such as Microsoft 365 E3 or Office 365 E3 combined with EMS E3. Actual costs may vary.
Licensing coverage also deserves attention. Microsoft Defender for Identity operates at the tenant level, and its security capabilities cannot currently be restricted entirely to individually licensed users.
Organizations need to account for applicable licensing requirements across their environment rather than assuming only administrators or high-risk users need coverage.
Microsoft Defender for Identity Integration Across the Microsoft Security Ecosystem
Identity attacks rarely stay in one place, and your security tools shouldn’t work in isolation either. Microsoft Defender for Identity integration helps connect suspicious account activity to broader security events, giving IT teams a clearer picture of potential attacks across their environment.
- Microsoft Defender XDR brings identity signals together with alerts from other Microsoft security tools.Instead of investigating a suspicious login separately from unusual device activity, analysts can review connected events within a unified incident. This helps reduce the time spent piecing together what happened and where an attacker may have gained access.
- Microsoft Entra ID Protection adds another layer by identifying risky cloud sign-ins and potentially compromised users.While Defender for Identity focuses on Active Directory threats and related hybrid identity activity, Entra ID Protection supports cloud identity risk detection and risk-based access policies. Together, they can help organizations recognize suspicious behaviour that crosses between on-premises infrastructure and the cloud.
- AI and non-human identities add a growing challenge. As businesses introduce AI agents and automation, more accounts operate without a person directly managing every action.Microsoft’s broader identity security capabilities can help identify risky service principals and excessive permissions, with some AI-agent visibility features still in preview. These capabilities support stronger oversight, but organizations still need clear ownership and regular access reviews.
Identity Security You Can Measure
Imagine an attacker using a stolen employee password to gain access to a privileged Active Directory account. Microsoft Defender for Identity can flag suspicious authentication activity, giving your security team an opportunity to investigate before the attacker moves further into your environment.
With the right response controls in place, teams can take action to contain compromised accounts and limit potential damage.
Defender for Identity also helps uncover risky accounts and insecure Active Directory configurations, while Microsoft Secure Score recommendations give IT teams a practical way to prioritize improvements.
Key Metrics for Measuring Identity Security
| Metric | What It Measures | Why It Matters |
|---|---|---|
| Identity monitoring coverage | Percentage of critical identity systems actively monitored | Reveals potential security blind spots |
| High-risk accounts identified | Number of accounts flagged for elevated risk | Helps prioritize accounts requiring attention |
| Security recommendations completed | Progress addressing identified security weaknesses | Demonstrates measurable improvements |
| Mean time to detect (MTTD) | Average time taken to identify an identity incident | Shows how quickly suspicious activity is recognized |
| Mean time to respond (MTTR) | Average time taken to respond to an identity incident | Helps evaluate response efficiency |
Make Microsoft Defender for Identity Part of a Measurable Security Strategy
Microsoft Defender for Identity can strengthen your security, but only when it’s configured to protect what matters most.
Before investing, it’s worth understanding whether your licensing covers your needs, where identity monitoring gaps exist, and whether your IT team has the capacity to respond when threats emerge.
F12 brings Microsoft-first expertise and a security-first approach to help Canadian businesses turn identity protection into measurable outcomes.
We help you understand where you’re exposed and where your next investment will make the greatest impact.
Frequently Asked Questions About Microsoft Defender for Identity
How Does Microsoft Defender for Identity Handle Users and Privileged Accounts?
Microsoft Defender for Identity monitors standard employees, administrators, and privileged accounts for suspicious authentication and attempts to gain unauthorized access. It also analyzes supported non-human identities, including service accounts and application identities that attackers may exploit. Employees generally don’t interact with the tool directly. Instead, authorized IT and security teams investigate alerts, review identity relationships, and respond through the Microsoft Defender portal. Coverage extends across supported on-premises, cloud, and hybrid identity systems, including Active Directory. However, detection depends on healthy sensors, configured integrations, and available signals. An account appearing in your directory doesn’t automatically guarantee complete threat visibility in practice.
What Are the Plans Available for Microsoft Defender for Identity Licensing and Microsoft 365?
Microsoft Defender for Identity is available as a standalone per-user subscription or through eligible packages, including Microsoft 365 E5, Enterprise Mobility + Security E5, and Microsoft Defender Suite. Microsoft 365 E3 alone does not include it. Because Defender for Identity operates tenant-wide, organizations should confirm user licensing obligations before purchasing. Factor deployment and ongoing monitoring costs into decisions, and verify pricing with Microsoft or a reseller.
What Is the Difference Between Microsoft Defender for Identity and Microsoft Entra ID Protection?
Microsoft Defender for Identity detects identity-based attacks, particularly suspicious activity involving on-premises Active Directory and hybrid environments. It helps security teams investigate credential abuse, privilege escalation, and lateral movement. Microsoft Entra ID Protection focuses on cloud identity risk, evaluating suspicious sign-ins and potentially compromised accounts. Through risk-based Conditional Access, it can require additional verification or block access. The tools complement each other rather than replace one another: Defender for Identity adds attack context, while Entra ID Protection informs access decisions. Organizations using both should confirm licensing, connect identity signals, and review coverage gaps so threats crossing environments don’t go unnoticed.
