Cyera raised a $400 million extension to its Series G from Goldman Sachs announced Sept. 22, 2026, a follow-on to the initial Series G close in June that valued the company at $12 billion; Cyera said it is now worth "over $12 billion" without disclosing an exact figure. The announcement did not disclose specific metrics on revenue, clients, pipeline or employee count. The funding comes amid an AI agent security push following the June close, with the launch of Agent Guardian — which inventories agents interacting with company data, scans agents, agent tools and MCP servers for vulnerabilities and enforces policies by blocking risky actions or quarantining agents — and Cyera Endpoint to monitor agents running on employee devices.