ITDR Best Practices: How to Detect, Prevent, and Contain Critical Identity Threats

Key takeaways:

• ITDR monitors identity-based threats that traditional security tools miss, like hackers logging in with stolen credentials
• Effective ITDR requires integration with privileged access management and automated responses tailored to your specific environment
• Consolidating threat detection into a single dashboard dramatically improves response times and reduces the cost of managing multiple security tools

Your security tools can’t tell the difference between a legitimate user and a hacker using stolen credentials. Neither can you… until it’s too late.

Threat actors don’t need malware anymore. They log in with legitimate credentials stolen through phishing, credential exploitation, or purchased from the dark web. In a remote-first world, they can access your systems from anywhere.

Traditional cybersecurity tools weren’t built to catch this. They monitor endpoints and networks, not identities. That’s the gap ITDR was designed to close.

But an effective ITDR strategy requires more than installing the right product. Here’s how to implement identity threat detection and response that actually protects your organization.

What is Identity Threat Detection and Response (ITDR)?

ITDR fills the gap traditional security tools miss. it monitors who’s accessing your systems, not just what’s being accessed.

While EDR and XDR products monitor endpoint, network, or email data, very few manage identities and accounts the same way.

ITDR focuses on analyzing account activity, access controls, and identity-related data rather than device or network information.

ITDR includes behavioral monitoring, anomaly detection, automated responses, and threat intelligence, which is similar to EDR and XDR.

But it has a unique set of responses when suspicious activity is detected, enforcing multi-factor authentication, revoking access permissions, or isolating compromised accounts.

Top 10 ITDR Best Practices

ITDR fills an important gap in your cybersecurity strategy. But not all products are built the same.

Here’s how to implement ITDR effectively and keep your organization secure.

1. Ensure Comprehensive Coverage Across Your IT Environment

Your ITDR system must support your entire IT infrastructure: Active Directory, on-premises directories, SaaS apps, identity infrastructure services, APIs, and machine identities.

You can’t protect identities your tools can’t see. Incomplete visibility creates blind spots that attackers exploit.

Before adopting ITDR, confirm it integrates with every identity source in your environment.

Read more: Best Practices for Effective Identity Lifecycle Management (ILM)

2. Build a Complete Identity Inventory

An effective ITDR strategy requires a comprehensive list of accounts and identities across your organization: privileged and non-privileged identities, human and machine identities, and dormant accounts you may not know exist.

Effective ITDR products include account discovery features that scan your IT environment for known and unknown accounts. This should be the first thing you do after implementation.

Orphaned accounts and forgotten service credentials are common entry points for attackers. Find them before hackers do.

Read more: The 11 Best Identity and Access Management Tools (2025)

3. Integrate with Privileged Access Management

Your tools for assigning permissions must communicate with those monitoring realtime account activity.

Without this integration, your threat detection tools lack the visibility and context needed to identify and respond to identity-based threats.

Some ITDR products include IAM, PAM, or PEDM functionality. If yours doesn’t, ensure your PAM and ITDR products can share information effectively.

Best case is to find an ITDR product that combines PAM/PEDM with threat detection in a single platform (hello Heimdal).

Read more: Effective Privileged Access Management Implementation: A Step-by-Step Guide

4. Build Custom Automated Responses

Most risky behavior is harmless but still requires a response.

A user logging in from a new device might need an additional authentication layer. But responding manually to every suspicious login wastes your team’s time on false alarms instead of real threats.

Automated responses are essential. The ability to create and customize these responses is fundamental to ITDR. The same goes for EDR and XDR.

While the basic framework is similar across organizations, tailor your automated workflows to your specific IT environment and the accounts accessing it.

Consider:

• What level of risk triggers an automated response?
• When should you enforce MFA vs. block access entirely?
• Which actions require human review?

5. Use Adaptive Risk Scoring

Most threat detection products offer risk scores for common threats, helping you quickly identify the most pressing issues.

The problem?

Generic risk scores can’t account for your environment’s unique risks. A failed login attempt from a new location might be normal for your remote sales team but suspicious for your finance department.

Adapt and supplement vendor risk scores with your own metrics where possible. This reduces false positives and helps you identify the most dangerous threats faster.

Read more: What is the EPSS score? How to Use It in Vulnerability Prioritization

6. Establish 24/7 Monitoring and Response

When critical threats strike, you need an expert available to lead the response. 

You have three options:

In-house security team: Multiple experts working shifts for 24/7 coverage. This is the most expensive option but works well for larger enterprises with complex IT environments.

Managed security services provider (MSSP): An outsourced team of security experts who monitor and manage your ITDR dashboards on your behalf. They provide proactive security and reactive response to realtime issues, typically with a contractual Service Level Agreement (SLA) guaranteeing response times.

If you’re interested in Heimdal, you can use our MXDR service – combining your security software and SOC team.  

Read more: Short Staffed in Cybersecurity? It’s Time for MXDR

7. Leverage Advanced Threat Intelligence

To identify critical risks, you first need to understand them. The most effective threat detection products offer advanced threat intelligence, which are aggregated insights from all the organizations and IT environments they monitor.

This provides vastly more context than what’s available within a single IT environment. If hackers use new or innovative techniques, security tools can identify when similar tactics appeared elsewhere.

Access to this intelligence, and understanding how to interpret it, can make the difference between a successful attack and a thwarted one.

Read more: What Is a Threat Intelligence Platform?

8. Enforce Multi-Factor Authentication

Hackers don’t need vulnerability exploits or malware if they have stolen credentials or session tokens. They simply log in as a normal user, then perform privilege escalation and move laterally through your IT environment.

Multi-factor authentication (MFA) provides a critical extra layer of defense. It’s not a silver bullet—MFA can be bypassed—but it makes attacks noticeably harder.

MFA is now widely available across security tools, operating systems, and individual SaaS apps. Enforce it for:

• New logins from unrecognized devices or locations
• Suspicious activity flagged by ITDR
• All login events to privileged accounts

Read more: What is Multi-Factor Authentication (MFA)?

9. Regularly Assess Your Identity Posture

Continuously monitor your IT environment to discover new accounts and vulnerabilities.

Effective security teams regularly adjust their risk metrics as they gather more data on how users interact with the IT environment. This reduces false positives and improves threat identification.

Stay current with developments in the cybersecurity landscape: new hacking tactics, defenses, and compliance requirements.

An effective MSSP can help here, as they already have extensive knowledge in this area.

Quarterly identity posture assessments should include:

• Discovery scans for new or dormant accounts
• Review of access permissions and privilege creep
• Analysis of authentication patterns and anomalies
• Updates to risk scoring based on observed behavior

Read more: What Is Identity Threat Detection and Response?

10. Consolidate Your Threat Detection Tools

When a critical threat hits, the last thing your team needs is clicking through multiple dashboards just to understand what’s happening.

But with traditional threat detection, that’s exactly what happens. The separate products each monitor network, endpoints, accounts, or email activity.

Read more: 3 Benefits of Using Consolidated Platforms in Cybersecurity

This creates two problems:

Higher costs and complexity: More tools mean more licenses, more training, and more time spent context-switching.

Incomplete context: It’s impossible to get the full picture of an event from one dashboard. Was that suspicious login preceded by a phishing email? Is the compromised endpoint accessing sensitive data? You can’t connect the dots when the dots live in different systems.

Prioritize tools that consolidate threat detection functionality into a single dashboard.

Unified visibility accelerates response times and improves threat identification.

ITDR Without the Drama

At Heimdal, we take a different approach to identity security.

Instead of splitting threat detection functionality across separate products and dashboards, we offer a single integrated platform.

This enables a comprehensive approach to protecting your organization’s identity infrastructure:

Unified threat detection: Heimdal’s integrated dashboard offers a single view over networks, emails, identities, accounts, and endpoints. Get all the functionality of ITDR without the extra license.

Behavioral monitoring: Advanced machine learning algorithms analyze account and login activity across your IT environment to identify malicious activities, including both known and unknown threats.

Remote access protection: A unique Heimdal tool that prevents unauthorized access attempts via RDP ports, stopping hackers from logging in with stolen credentials.

Privileged access management: Manage access permissions and threat detection from the same platform. Implement role-based access and dynamically grant or revoke access based on contextual signals.

Email security: Advanced threat protection (ATP) prevents credentials from being stolen, reducing the risk of attackers gaining access to your IT environment.

Get in touch with Heimdal to find out more.

ITDR FAQs

What is the difference between ITDR and XDR?

ITDR monitors user accounts and login activity to identify malicious behavior in realtime. XDR takes a broader approach, analyzing data from networks, endpoints, emails, and user accounts. ITDR is focused specifically on identity-based threats, while XDR provides extended detection across multiple security layers.

What is ITDR in cybersecurity?

ITDR refers to security tools that protect accounts from identity-based attacks. They monitor realtime user and login activity, using AI-powered behavioral analysis to flag suspicious events. IT teams can configure automated responses to ensure rapid and effective defense when risks are detected.

What are the key ITDR best practices?

The most important ITDR best practices are:

1. Ensure comprehensive coverage across your IT environment

2. Build a complete identity inventory

3. Integrate with privileged access management

4. Build custom automated responses

5. Consolidate your threat detection tools to avoid siloed dashboards.

Danny Mitchell

Head of Content at Heimdal. A journalist by trade who cares about helping MSPs and security teams make better decisions, enjoy their work, and see real results.