Intrusion Detection is a crucial aspect of network security. These tools help in identifying and preventing unauthorized access to a network. Below is a list of some popular intrusion detection tools:
- Snort: An open-source intrusion detection system that can be used to detect various types of intrusions in real-time.
- Suricata: An open-source network intrusion detection system that is known for its high performance and scalability.
- Bro: An open-source network security monitoring tool that can be used for intrusion detection and traffic analysis.

For more information on intrusion detection and security tools, please visit our Security Tools page.