What is HP ArcSight?

HP ArcSight (now Micro Focus ArcSight) is a security information and event management (SIEM) platform. It collects, analyzes, and correlates security-related events from various sources across an organization's IT infrastructure. ArcSight is commonly used for threat detection, security monitoring, incident response, compliance reporting, and log management, enabling security teams to identify and respond to potential security threats in real-time.