What is a Whitelist? What is a Whitelist? A list of discrete entities, such as hosts or applications, that are known to be benign. 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