What is PII? What is PII? Personally Identifiable Data (PII) is information that can be used to uniquely identify , contact, or locate a single person. Related Resources Solution NETSCOUT Omnis Cybersecurity Solution 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