Foresite Catalyst is a managed security platform built on top of Google Cloud's native security ecosystem. It unifies and operationalizes multiple Google security services — including Google SecOps (SIEM, SOAR, XDR), Security Command Center (SCC), Mandiant Threat Defense, Google Threat Intelligence (GTI), and Model Armor — into a single managed service delivered by Foresite security experts. Catalyst is structured around five purpose-built modules: - Foresite Bridge: Fully managed Google SecOps platform powered by Google SecOps and Mandiant Threat Defense. - Foresite Citadel: MXDR and 24/7 SOC response, powered by Google SecOps. - Foresite Nexus: Automated compliance and GRC enforcement, powered by Security Command Center Enterprise. - Foresite Command: AI-driven threat intelligence and forensics, powered by Google Threat Intelligence. - Foresite Adapt: AI workload protection and attack defense, powered by Model Armor. Key capabilities include unified threat detection across multi-cloud environments, automation of detection, response, and reporting, compliance monitoring and evidence mapping, threat intelligence ingestion and correlation, and AI security guardrails for GenAI and ML workloads. Catalyst is delivered through three service models: Managed Services (24/7 security operations and response), Professional Services (security assessments, testing, and risk reduction), and Advisory & Enablement (vCISO leadership, compliance support, and security program development). A compatible Google SecOps subscription is required and sold separately.