What Are Risk-Based Detections in Splunk?
Risk-based detections in Splunk Enterprise Security (ES) assign risk scores to security events based on threat severity and asset criticality.
????Key Components of Risk-Based Detections:1️⃣Risk Modifiers – Adjusts risk scores based on event type (e.g., failed logins, malware detections).2️⃣Risk Objects – Entities associated with security events (e.g., users, IPs, devices).3️⃣Risk Scores – Numerical values indicating the severity of a risk.
????Example in Splunk Enterprise Security:????Scenario: A high-privilege account (Admin) fails multiple logins from an unusual location.✅Splunk ES applies risk-based detection:
Failed logins add +10 risk points
Login from a suspicious country adds +15 points
Total risk score exceeds 25 → Triggers an alert
Why Not the Other Options?
❌B. Summary indexing, tags, and event types – Summary indexing stores precomputed data, but doesn’t drive risk-based detection.❌C. Alerts, notifications, and priority levels – Important, but risk-based detection is based on scoring, not just alerts.❌D. Source types, correlation searches, and asset groups – Helps in data organization, but not specific to risk-based detections.
References & Learning Resources
????Splunk ES Risk-Based Alerting Guide: https://docs.splunk.com/Documentation/ES ????Risk-Based Detections & Scoring in Splunk: https://www.splunk.com/en_us/blog/security/risk-based-alerting.html ????Best Practices for Risk Scoring in SOC Operations: https://splunkbase.splunk.com
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