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Computer Science
Cybersecurity
Security Event Triage
1. Foundations of Security Event Triage
2. The Triage Workflow
3. Key Data Sources for Triage
4. Core Triage Analysis Techniques
5. Tools of the Triage Analyst
6. Prioritization Frameworks and Models
7. Common Alert Types and Triage Approaches
8. Documentation and Communication
9. Developing Triage Expertise
8.
Documentation and Communication
8.1.
Writing Effective Triage Summaries
8.1.1.
The "Who, What, When, Where, Why"
8.1.1.1.
Stakeholder Identification
8.1.1.2.
Event Description
8.1.1.3.
Timeline Construction
8.1.1.4.
Location and System Details
8.1.1.5.
Root Cause Analysis
8.1.2.
Key Findings and IOCs
8.1.2.1.
Summary of Evidence
8.1.2.2.
List of Relevant IOCs
8.1.2.3.
Supporting Data Points
8.1.3.
Recommended Next Steps
8.1.3.1.
Immediate Actions
8.1.3.2.
Long-Term Recommendations
8.1.3.3.
Resource Requirements
8.2.
Creating and Managing Tickets
8.2.1.
Standardized Ticketing Formats
8.2.1.1.
Required Fields
8.2.1.2.
Consistent Terminology
8.2.1.3.
Template Usage
8.2.2.
Linking Related Alerts and Events
8.2.2.1.
Correlation of Multiple Incidents
8.2.2.2.
Reference to Previous Cases
8.2.2.3.
Campaign Tracking
8.2.3.
Ticket Lifecycle Management
8.2.3.1.
Status Updates
8.2.3.2.
Progress Tracking
8.2.3.3.
Closure Procedures
8.3.
Escalation Procedures
8.3.1.
Defining Escalation Paths
8.3.1.1.
Tiered Response Structure
8.3.1.2.
Escalation Triggers
8.3.1.3.
Authority Levels
8.3.2.
Communication with Tier 2/3 Analysts
8.3.2.1.
Information Handover
8.3.2.2.
Collaboration Tools
8.3.2.3.
Knowledge Transfer
8.3.3.
Handoff Protocols
8.3.3.1.
Documentation Requirements
8.3.3.2.
Confirmation of Receipt
8.3.3.3.
Transition Procedures
8.4.
Feedback Loops
8.4.1.
Tuning Security Tools to Reduce False Positives
8.4.1.1.
Rule Adjustment
8.4.1.2.
Threshold Modification
8.4.1.3.
Whitelisting and Blacklisting
8.4.2.
Improving Detection Rules
8.4.2.1.
Rule Testing and Validation
8.4.2.2.
Incorporating Analyst Feedback
8.4.2.3.
Performance Metrics
8.4.3.
Documenting Lessons Learned
8.4.3.1.
Post-Incident Reviews
8.4.3.2.
Process Updates
8.4.3.3.
Knowledge Base Maintenance
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7. Common Alert Types and Triage Approaches
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9. Developing Triage Expertise