Special Notice: ENERGY, DEPARTMENT OF is seeking Open Source Software: ICSNPP: Advanced Industrial Control System Protocol Parsing for Zeek. This service is typically used to enhance network security and monitoring in industrial control systems (ICS). ICSNPP is a collection of Zeek plugin protocol parsers tailored for the industrial control sector, providing detailed insights into network activities and enabling more effective monitoring, threat detection, and incident response. The service supports four major ICS protocols: BACnet, DNP3, Ethernet/IP, and Modbus. It offers unmatched depth in parsing ICS-specific protocols, quick and easy integration, open-source accessibility, proactive threat hunting, and CISA-tested reliability. The applications of this service include optimizing renewable energy integration, securing manufacturing processes, protecting water treatment facilities, and enhancing the resilience of critical infrastructure. Elevate your industrial control system's security posture with ICSNPP. Visit the GitHub page for more information and to download the plugin suite.