Adaptive Access Enforcement in Poly-Cloud Ecosystems: A Zero-Trust Paradigm

This paper proposes a novel architectural framework for robust security within dynamic multi-cloud environments, addressing the limitations of traditional perimeter defenses. It establishes and elaborates upon core Zero-Trust principles, including stringent identity validation, fine-grained access control, and perpetual operational vigilance, to counter contemporary cyber threats such as lateral infiltration and cloud-native attack vectors. The contribution details a systematic approach to fortifying distributed cloud workloads through the enforcement of least-privilege access and micro-segmentation strategies. Furthermore, the paper critically examines advanced policy enforcement mechanisms, enhanced identity management solutions, and the strategic integration of cryptographic and distributed ledger technologies to achieve superior defensive postures. This work delivers actionable insights for designing resilient security postures across diverse cloud infrastructures.