The moment a cloud workload changes, the security picture around it can change too. A new application release, an altered configuration or an interaction between services may affect whether an exposure can be exploited. For security teams relying on periodic assessments, keeping pace with those changes can be difficult.

Upwind Security has built its cloud and AI security platform around the need to understand infrastructure while it is running. The company announced a $400 million Series C round led by Bessemer Venture Partners, valuing it at $3.8 billion after revenue quadrupled in 2026.