This document summarizes a research paper that proposes a rule-based technique using fuzzy logic to detect security attacks in wireless sensor networks. The paper identifies 10 common security attacks in wireless sensor networks including denial of service, eavesdropping, traffic analysis, etc. A fuzzy rule-based system is developed to calculate the impact of these security attacks. The system uses MATLAB tools and mouse dataset to test performance. Case studies are presented to demonstrate how the system can predict the likelihood and impact of security attacks on a wireless sensor network.