Security and Network Monitoring

"Prevention is cheaper than a breach"

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Security Monitoring

Security monitoring focuses on detecting, analyzing, and responding to threats.

Key Features

Threat Detection

Identify suspicious activity (malware, intrusions, unauthorized access)

Log Analysis

Monitor system logs (servers, firewalls, applications)

User Behavior Analytics (UBA)

Detect abnormal user actions

Endpoint Monitoring

Track devices like laptops and servers

Common Tools

SIEM (Security Information and Event Management)

Examples: Splunk, Microsoft Sentinel, QRadar β†’ Collects and analyzes logs in real time

EDR/XDR (Endpoint Detection & Response)

Examples: CrowdStrike, Defender for Endpoint β†’ Detects endpoint threats and attacks

IDS/IPS (Intrusion Detection/Prevention Systems)

β†’ Identifies malicious traffic patterns

What It Detects

Unauthorized access attempts

Data exfiltration

Malware / ransomware

Insider threats

Network Monitoring

Performance Monitoring

Bandwidth, latency, packet loss

Availability Monitoring

Devices and services uptime

Traffic Analysis

Who is using the network and how

Configuration Monitoring

Changes in network devices

Common Tools

Common Tools

NMS (Network Management Systems)

Examples: SolarWinds, PRTG, Nagios

Flow Analysis Tools

NetFlow, sFlow tools β†’ track traffic patterns

Packet Capture Tools

Wireshark β†’ deep traffic inspection

What It Detects

Network bottlenecks

Device failures

Connectivity issues

Unusual traffic spikes

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πŸ”— How They Work Together

Modern systems combine both:

  • Network monitoring detects anomalies (e.g., traffic spike)
  • Security tools analyze for threats (e.g., DDoS attack)

This integration is often called: πŸ‘‰ NDR (Network Detection & Response)

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