SIEM Guide 🔍📊

1. What is SIEM?

SIEM is a system that collects logs from different sources and analyzes them to detect security threats in real time.

2. How SIEM Works

Devices → Logs → SIEM → Analysis → Alerts 🚨

3. Key Components

Log Collection → Gather data
Normalization → Organize logs
Correlation → Find patterns
Alerting → Notify threats

4. Use Cases

Detect hacking attempts
Monitor server activity
Analyze user behavior
Incident response

5. SIEM Tools

Splunk → Most popular SIEM
IBM QRadar → Enterprise security
ELK Stack → Open-source SIEM
Microsoft Sentinel → Cloud SIEM

6. Types of Logs

System logs
Application logs
Network logs
Security logs

7. Benefits

- Real-time monitoring
- Threat detection
- Faster incident response
- Compliance reporting

8. SIEM in SOC

SOC Analyst → Monitors SIEM
Detect → Investigate → Respond