Identity has become the primary control plane for modern business operations. Email, collaboration, file sharing, and business applications all depend on trusted user accounts. As organizations continue to adopt Microsoft 365, protecting those identities has become just as important as securing endpoints and networks.
Sourcepass Identity Threat Detection and Response (ITDR) helps organizations detect and respond to malicious activity after an attacker gains access to a legitimate account. By continuously monitoring Microsoft 365 identities and user behavior, Sourcepass ITDR helps uncover compromised accounts, suspicious activity, and business email compromise (BEC) attacks that traditional security controls may miss.
Identity Threat Detection and Response is a cybersecurity discipline focused on monitoring, detecting, investigating, and responding to threats targeting user identities.
Traditional security controls are highly effective at protecting the perimeter, blocking malware, and enforcing sign-in policies. However, modern attacks increasingly rely on compromised credentials, stolen session tokens, and legitimate user accounts rather than overt malware.
When attackers successfully authenticate to Microsoft 365, many security controls see a valid user performing authorized actions. ITDR helps security teams identify when those actions no longer match normal user behavior.
For organizations operating in Microsoft 365 environments, ITDR provides additional visibility into:
According to Microsoft's Digital Defense Report, identity-based attacks continue to grow as threat actors increasingly target user accounts rather than traditional infrastructure.
Microsoft 365 provides strong security capabilities, including multifactor authentication (MFA), Conditional Access, Microsoft Defender, and Microsoft Entra ID protections.
These controls help prevent unauthorized access. However, attackers increasingly focus on techniques designed to bypass or exploit legitimate authentication.
Examples include:
Once attackers gain access to a trusted account, they can:
This is where identity threat detection becomes essential. Rather than focusing solely on authentication events, ITDR analyzes user behavior after access has been granted.
Sourcepass Identity Threat Detection and Response (ITDR) is a managed security capability designed specifically to protect Microsoft 365 environments from identity-based threats.
By combining automated monitoring, behavioral analytics, threat detection, and security expertise, Sourcepass helps organizations identify suspicious activity associated with legitimate user accounts before significant damage occurs.
Rather than replacing Microsoft's built-in security controls, Sourcepass ITDR enhances them with an additional layer of visibility and response focused on user identity risk. This defense-in-depth approach helps organizations reduce the likelihood and impact of account compromise.
One of the most effective ways to identify identity-based attacks is through behavioral analysis.
Sourcepass ITDR continuously evaluates user activity across Microsoft 365 environments to identify behavior that deviates from established patterns, helping security teams recognize threats that may otherwise appear legitimate.
Examples include:
Unusual account access patterns
Suspicious mailbox activity
Unexpected permission changes
Unauthorized application grants
Indicators of business email compromise
Business email compromise remains one of the most costly forms of cybercrime.
Many BEC attacks involve legitimate user accounts rather than malware, allowing attackers to monitor conversations, impersonate employees, and manipulate financial processes while avoiding traditional security controls.
Behavior-based monitoring helps identify these threats before they result in financial loss or operational disruption.
When suspicious activity is detected, response time matters.
Sourcepass ITDR includes automated response capabilities designed to contain identity threats quickly, helping organizations reduce risk and minimize the time security teams spend manually investigating incidents.
For organizations with limited internal security resources, automation improves consistency while reducing operational overhead.
Security teams need more than alerts. They need context.
Sourcepass ITDR helps organizations understand:
This visibility supports security investigations, compliance initiatives, cyber insurance requirements, and executive reporting.
Account takeover occurs when attackers gain unauthorized access through phishing, password theft, token theft, or credential reuse.
Once authenticated, attackers often appear to be legitimate users.
Behavior-based monitoring helps identify abnormal post-authentication activity that may indicate compromise.
BEC attacks frequently target:
Identity threat detection helps identify suspicious behavior before fraudulent requests spread throughout the organization.
Attackers commonly create hidden inbox rules that:
Because these changes often occur after successful account compromise, they can remain undetected for extended periods without visibility into user behavior.
OAuth abuse continues to grow in Microsoft 365 environments.
Attackers may trick users into granting permissions to malicious applications, providing ongoing access to organizational data without requiring password theft.
Monitoring permissions and behavioral anomalies helps reduce this risk.
No single security solution eliminates risk.
Organizations that achieve the strongest security outcomes typically combine:
Sourcepass ITDR complements these controls by providing visibility into identity-based threats occurring within Microsoft 365.
For small and mid-sized businesses, this additional layer helps bridge the gap between preventive security controls and effective incident response.
The value of ITDR extends beyond technical security metrics.
Organizations benefit from:
Most importantly, ITDR helps organizations focus on meaningful risk reduction rather than simply generating more security alerts.
Identity Threat Detection and Response is a cybersecurity practice focused on identifying, investigating, and responding to threats targeting user identities and authenticated accounts. ITDR helps organizations detect compromised accounts, suspicious behavior, and business email compromise activity that may occur after successful authentication.
MFA helps prevent unauthorized access. ITDR helps identify malicious activity after authentication has already occurred. Both play important roles in a modern security strategy.
Yes. Microsoft 365 includes identity and access management capabilities through Microsoft Entra ID, Conditional Access, MFA, and Microsoft Defender. Many organizations implement ITDR as an additional layer to improve behavioral monitoring and threat detection.
Sourcepass ITDR helps identify account takeover attempts, business email compromise, suspicious sign-ins, mailbox manipulation, unauthorized permissions, abnormal user behavior, and other identity-based threats within Microsoft 365 environments.
No. Organizations of all sizes face identity-based attacks. ITDR is particularly valuable for small and mid-sized businesses that want enterprise-grade visibility and response capabilities without building a large internal security team.
No. ITDR is designed to complement Microsoft's security ecosystem. The strongest security posture combines preventive controls, threat detection, response capabilities, security awareness training, and ongoing monitoring.
Business email compromise often involves legitimate user accounts rather than malware. Since attackers operate using trusted identities, their actions can appear normal unless security tools continuously monitor user behavior and account activity.