Abstract: In accordance with an embodiment, described herein is a system and method for multi-cloud governance and protection including zero-latency entitlement reconciliation. The system can be used to address entitlement propagation delays in multi-cloud environments, by leveraging quantum computing techniques and zero-latency synchronization to provide instant updates to permissions and roles across one or more cloud environments while maintaining security for access logs and audit trails. Embodiments described herein can be used to support applications across various technologies, such as cloud infrastructure entitlement management (CIEM), cloud security posture management (CSPM), or cloud native application protection platform (CNAPP), while providing faster, secure, and highly-scalable cloud governance capabilities.