A Zero-Trust blueprint for multi-cloud data resiliency: start by naming the risks—data sprawl, inconsistent controls, tougher compliance, larger attack surface, plus new AI and quantum threats. Apply core Zero-Trust moves everywhere: least-privilege IAM with MFA, micro-segmentation, end-to-end encryption, and continuous monitoring/logging. Harden storage with synchronous/asynchronous replication, immutability (WORM/object lock), and automated tiering. Make backups survivable: 3-2-1, air-gapping (logical/physical), encryption in transit/at rest, automated restore tests, RBAC, and separation of duties. Strengthen cyber resilience via EDR/IDS/IPS, vulnerability management, SIEM centralization, rehearsed incident response, and isolating backup networks. Use AI for anomaly detection and response automation; future-proof with quantum-safe crypto (lattice, hash-based, QKD, TLS). Operationalize with strict policies, training, and automation.

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