ImmunityOne is a shared immunity technology SaaS system independently developed by Asiainfo-SEC. It performs multi-tenant management through the Cloud Native platform, and the collected high-fidelity data is centrally stored to form a secure data lake. Threat analysts hunt threats based on security incident leads, refine threat intelligence, and share it with all customers across the network to achieve a “one-place detection, network-wide immunity” security defense system for advanced threats.