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Healthtech incident recovery requires detailed event reconciliation, not just dashboard status

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A healthtech system incident involving a leaked key demonstrates that restoring webhook traffic is insufficient for accurate recovery. A proper postmortem requires reconciling two independent records: the provider's delivery history and the consumer's own receipt and billing ledgers. This reconciliation identifies which events were not acknowledged and should be replayed from a controlled, internal dead-letter queue. The process prevents duplicate billing by ensuring idempotent consumers and precise tracking of replay results.

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