Client Profile
A rapidly growing fintech company providing digital payment and financial services to customers across multiple regions.
Business Challenge
The client's security team required enhanced visibility into privileged account activities within its identity infrastructure. Given the sensitive nature of customer financial data and user accounts, any misuse of administrative privileges could result in unauthorized account access, service disruption, or large-scale credential compromise.
During a security monitoring engagement, our team identified the need to detect scenarios where a single administrator account performs password resets for multiple users within a short period of time.
Our Approach
We developed and implemented a SIEM detection use case that monitored Active Directory administrative events related to password reset activities. The rule correlated password reset actions performed by privileged accounts and measured the number of unique user accounts affected within a one-hour window.
The detection captured:
- Administrative account performing the resets
- Affected user accounts
- Source system and originating IP address
- Event timestamps
- Volume of password reset activity
Thresholds were configured to generate alerts whenever a single administrator reset passwords for an unusually high number of users.
Outcome
The use case significantly improved visibility into privileged account activity and enabled the security operations team to rapidly identify suspicious administrative behaviour.
Key benefits included:
- Early detection of potential privileged account compromise
- Reduced risk of unauthorized account takeover
- Faster investigation of identity-related security incidents
- Improved compliance and audit reporting for sensitive administrative actions
- Strengthened protection of customer-facing identity services
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