What is a False Negative? What is a False Negative? An instance in which an intrusion detection and prevention technology fails to identify malicious activity as being such. Related Resources Solution Omnis Security Omnis Network Security is a holistic cybersecurity platform for comprehensive network visibility, threat detection, investigation, and protection. Learn more Blog ASERT NETSCOUT’s network security experts provide world-class cyber security research and threat analysis for the benefit of today’s enterprise and network operators. Learn more