The workload identity security market size is estimated at USD 3.1 billion in 2025 and is projected to reach USD 27.8 billion by 2034, growing at a CAGR of 27.7%. Growth is driven by increasing adoption of cloud-native applications, expanding use of microservices and containerized workloads, and rising demand for machine identity management, zero-trust security frameworks, and identity-centric protection across hybrid and multi-cloud environments.