What is an IDS?
An Intrusion Detection System (IDS) is a security solution that monitors network traffic and system activities to detect signs of suspicious or malicious behavior. Unlike firewalls or IPS, IDS generates alerts but does not automatically block threats.
How does an IDS work?
- NIDS (Network-based IDS): Analyzes network traffic in real time
- HIDS (Host-based IDS): Monitors individual devices and system logs
- Signature-based IDS: Identifies known attacks using threat databases
- Anomaly-based IDS: Detects unknown threats using behavior analysis and AI
Benefits of IDS:
- Provides early warning of attacks or suspicious activity
- Enables detailed traffic and system analysis
- Strengthens incident response and logging capabilities
- Supports compliance with cybersecurity regulations
Use Cases for IDS:
- Organizations handling sensitive data
- Protection of OT and IoT environments in energy, transport, and healthcare
- Hybrid cloud and distributed infrastructures
- Public authorities and defense organizations