IDS

An Intrusion Detection System (IDS) is a type of cybersecurity tool used for monitoring network traffic for suspicious activity and known threats. The system sends alerts when it discovers suspicious activity, which then allows security professionals to investigate potential incidents.

Here is an overview of key aspects of IDS:

• Types of IDS: Network IDS (NIDS) monitors network traffic, while Host-based IDS (HIDS) focuses on activities within a specific host or device. Signature-based systems detect known attack patterns, while anomaly-based systems flag deviations from established norms.
• Functionality: By continuously monitoring traffic and activities, it can catch threats that other security measures might miss.
• Limitations: IDS is passive and doesn't prevent attacks. It can generate many false alarms and doesn't handle encrypted traffic well.
• Integration with Other Tools: IDS often pairs with firewalls, SIEM systems, and other security controls for enhanced threat detection and response.

While IDS is a valuable tool in cybersecurity, it has its limitations and works best when integrated with a comprehensive security solution like an XDR platform. To understand how Sekoia.io’s XDR platform can enhance your cybersecurity posture, check out our other glossary definitions: SOC, SIEM, EDR, XDR, NDR.