NetWitness Cloud SIEM is a cloud-based threat detection and response solution that delivers pervasive visibility, multi-faceted analytics, and automated response capabilities without the need for on-premise deployment and administration. This new deployment option makes it easy for NetWitness customers to take advantage of evolved SIEM without expending the resources associated with planning, sizing, deploying, updating, and administering the solution in their local data center. The NetWitness Platform delivers enhanced visibility, integrating logs, network data and endpoints, applying threat intelligence and user behavior analytics to detect, prioritize, investigate threats and automate response.
Source: https://www.helpnetsecurity.com/2021/05/27/netwitness-cloud-siem/