CLIPS (C Language Integrated Production System) is a public domain software tool for building rule-based expert systems. In cybersecurity, CLIPS is often used to define detection logic for identifying threats or anomalies by encoding expert knowledge as rules. These systems can automatically analyze data, recognize patterns, and trigger alerts based on predefined criteria. CLIPS provides a flexible environment for developing complex detection mechanisms, allowing cybersecurity professionals to quickly adapt to new threats by updating or adding rules. Its integration capabilities and ease of use make it a popular choice for developing intelligent detection engines in security applications.