What is Identity Threat Detection and Response (ITDR)
Identities have become the new frontline of cyber defense. With the shift to cloud and remote work, the traditional network perimeter has dissolved, creating new attack surfaces that are difficult to monitor and secure.
Sophos Identity Threat Detection and Response (ITDR) identifies and responds to threats that bypass traditional identity security controls. Fully integrated with Sophos XDR and Sophos MDR, it continuously monitors for identity misconfigurations and risks, provides dark web intelligence on compromised credentials, and enables efficient, analyst-led response actions.
What is Identity Threat Detection and Response (ITDR), and why is it important?
Traditional perimeter-based defenses can’t easily block attackers from logging in using legitimate credentials.
Sophos ITDR continuously monitors for identity misconfigurations, risks, and exposed credentials, detecting attacks that evade traditional identity controls such as Identity and Access Management (IAM) tools.
It helps organizations reduce their identity attack surface and respond to threats with speed and precision, with full coverage of MITRE ATT&CK Credential Access techniques.
How does ITDR differ from Identity and Access Management (IAM) or MFA?
While IAM and MFA help control access, they don’t detect or respond to identity misuse. ITDR fills that gap by actively monitoring for credential access anomalies, such as forced authentication and privilege escalation, enabling analysts to rapidly execute response actions like session revocation or password resets.
Sophos ITDR strengthens IAM systems including Microsoft Entra ID, to close gaps that attackers exploit.
What types of identity-based threats does ITDR protect against?
ITDR protects against the full spectrum of identity attacks, including:
- Compromised credentials and account takeover.
- Privilege escalation and lateral movement.
- MFA fatigue and token theft.
- Password spraying, brute-force, and kerberoasting attacks.
Sophos X-Ops Counter Threat Unit (CTU) observed a 106% increase in stolen credentials sold on the dark web (June 2024 – June 2025), underscoring the growing risk that Sophos ITDR directly addresses.
Does ITDR integrate with XDR and MDR tools?
Sophos ITDR is fully integrated with Sophos Extended Detection and Response (XDR) and Sophos Managed Detection and Response (MDR)
When used with Sophos MDR, identity threat detections and high-risk findings are automatically escalated to our expert team of security analysts, who investigate and execute response actions to neutralize threats on the customer’s behalf.
What are the core capabilities of an effective ITDR solution?
Sophos ITDR continuously performs 80+ cloud identity posture checks, going beyond basic hygiene.
Core capabilities include:
- Identity Catalog: Full visibility across all identities to eliminate blind spots.
- Posture Dashboard: Prioritized view of identity risks and exposed credentials.
- Continuous Assessment: Ongoing detection of misconfigurations and dormant accounts.
- Dark Web Intelligence: Alerts when stolen credentials appear on the dark web and in breach databases.
- User Behavior Analytics (UEBA): Identifies insider threats and abnormal activity early.
These features help uncover and prioritize risks in minutes, not days.
How does ITDR help meet compliance and reduce risk exposure?
ITDR strengthens compliance with NIST, ISO 27001, and GDPR by improving visibility into access patterns and reducing identity-related vulnerabilities.
Sophos ITDR supports compliance initiatives by enabling continuous monitoring and identity posture baselines, helping security teams demonstrate control effectiveness and reduce the likelihood of a breach.
How does ITDR leverage AI and machine learning to detect advanced identity attacks?
Fully integrated, Sophos XDR and Sophos ITDR use AI-driven detections and behavioral analytics to identify various advanced identity-based attack patterns.
AI/ML models continuously learn from user behavior and integrate with Taegis XDR or Sophos XDR telemetry to correlate identity and endpoint activity for high-fidelity detections. Contact Sophos to determine which integration is best for your environment.
What metrics and KPIs should organizations track to measure ITDR performance?
Key metrics include:
- Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR) to identity threats.
- False positive rate and coverage of privileged identities.
- Reduction in misconfigurations and credential exposures over time.
Sophos ITDR allows users to benchmark their identity attack surface and track their risk posture score over time through the Identity Posture Dashboard.
What are the best practices for operationalizing ITDR within a Zero Trust strategy?
Mature organizations integrate ITDR into their Zero Trust and incident response playbooks to achieve continuous verification and automated containment.
With Sophos ITDR, teams can:
- Execute remediation actions like password resets and session terminations.
- Leverage Sophos MDR analysts for 24/7 monitoring and human-led response.
- Continuously assess Microsoft Entra ID environments to close configuration gaps.
Elevate your identity defense
Identity-based attacks are among the top access vectors for ransomware, with 90% of organizations experiencing an identity breach in the past year
(See:
2024 Trends in Securing Digital Identities).
Sophos ITDR helps you stay ahead by combining continuous monitoring, dark web intelligence, and automated response, all delivered through the Sophos Central platform. Learn more about Sophos ITDR and how it integrates with Sophos MDR and XDR to protect your organization from identity-based threats.
Response actions are all delivered through the Sophos Central platform. Learn more about Sophos ITDR and how it integrates with Sophos MDR and Sophos XDR to protect your organization from identity-based threats.
Advanced identity attack patterns defined
Sophos ITDR provides full coverage against the types of attacks listed on the MITRE ATT&CK Credential Access list by continuously monitoring identity systems, detecting suspicious authentication activity, and responding quickly to stop unauthorized access or credential abuse. Some of the more common credential access types are listed below, view MITRE ATT&CK Credential Access for the full list.
Brute Force: An attack that attempts numerous password combinations for a single account, by guessing a valid password through persistence or automation, until the correct one is discovered.
Golden Ticket Attack: Attackers forge a Kerberos Ticket Granting Ticket (TGT) using the compromised KRBTGT account in Active Directory, allowing them to gain unrestricted and persistent access to domain resources without needing valid credentials or repeated authentication.
Kerberoasting: Gain access to privileged service accounts, an attacker requests and extracts encrypted service tickets from Active Directory to crack service account passwords offline and gain elevated access.
Password Spray: A method where attackers try a few common passwords (e.g., “Password123!”) across many accounts to identify weak credentials without triggering lockouts from repeated failures.