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Azure AI Search is already connected to the Blob Storage via a connectionstring using an encrypted account key
Data Protection
Azure Storage
Azure Web Apps
- Encrypt your application source at rest - Azure App Service | Microsoft Learn, Azure security baseline for App Service | Microsoft Learn
Azure AI Search
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Azure AI Search automatically encrypts data at rest with service-managed keys - Move a search service across regions - Azure AI Search | Microsoft Learn, Encrypt data using customer-managed keys - Azure AI Search | Microsoft Learn, Azure security baseline for Cognitive Services | Microsoft Learn
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