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SIEM (Security Information and Event Management) is a centralized cybersecurity solution that collects, correlates, and analyzes security logs from multiple systems in real time.
Its main goal is to detect threats, identify suspicious behavior, and provide security teams with actionable insights.
Key Functions of SIEM
- Log Collection: Gathers logs from servers, firewalls, endpoints, applications, and cloud systems.
- Correlation: Connects related events to reveal cyberattack patterns.
- Real-Time Monitoring: Detects anomalies and alerts security teams instantly.
- Incident Response Support: Helps analysts investigate and respond to attacks faster.
- Compliance Reporting: Automates reports for standards such as ISO 27001, PCI-DSS, HIPAA, etc.
Why SIEM is Important
- Detects attacks early
- Provides visibility into the entire infrastructure
- Reduces security risks
- Helps organizations meet compliance requirements
- Supports threat hunting and forensic analysis
Common SIEM Tools
- IBM QRadar
- Splunk Enterprise Security
- Elastic SIEM
- Microsoft Sentinel
- ArcSight
