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Merge pull request #310895 from christinechen2/docs-editor/transport-layer-security-confi-1769461810
Update transport-layer-security-configure-minimum-version.md
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articles/storage/blobs/TOC.yml

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href: ../common/transport-layer-security-configure-minimum-version.md?toc=/azure/storage/blobs/toc.json&bc=/azure/storage/blobs/breadcrumb/toc.json
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- name: Configure TLS version for a client
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href: ../common/transport-layer-security-configure-client-version.md?toc=/azure/storage/blobs/toc.json&bc=/azure/storage/blobs/breadcrumb/toc.json
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- name: Migrate to TLS 1.2
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href: ../common/transport-layer-security-configure-migrate-to-TLS2.md?toc=/azure/storage/blobs/toc.json&bc=/azure/storage/blobs/breadcrumb/toc.json
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- name: TLS version retirement
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items:
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- name: Migrate to TLS 1.2
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href: ../common/transport-layer-security-configure-migrate-to-TLS2.md?toc=/azure/storage/blobs/toc.json&bc=/azure/storage/blobs/breadcrumb/toc.json
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- name: Network routing
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href: ../common/network-routing-preference.md?toc=/azure/storage/blobs/toc.json&bc=/azure/storage/blobs/breadcrumb/toc.json
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articles/storage/common/transport-layer-security-configure-minimum-version.md

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ms.service: azure-storage
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ms.topic: how-to
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ms.date: 09/24/2025
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ms.date: 01/28/2026
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ms.author: normesta
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ms.reviewer: fryu
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ms.subservice: storage-common-concepts
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Communication between a client application and an Azure Storage account is encrypted using Transport Layer Security (TLS). TLS is a standard cryptographic protocol that ensures privacy and data integrity between clients and services over the Internet. For more information about TLS, see [Transport Layer Security](https://en.wikipedia.org/wiki/Transport_Layer_Security).
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Azure Storage supports four versions of the TLS protocol: 1.0, 1.1, 1.2, and 1.3. Azure Storage uses TLS 1.2 or TLS 1.3 on public HTTPS endpoints, but still supports TLS 1.0 and TLS 1.1 for backward compatibility. While TLS 1.3 is now supported, the ability to enforce it as the minimum TLS version for Azure Storage accounts isn't currently supported. The recommended minimum TLS version is TLS 1.2. Clients using the latest TLS versions will automatically negotiate to use TLS 1.3 if available.
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Azure Storage supports two versions of the TLS protocol: 1.2 and 1.3. While TLS 1.3 is now supported, the ability to enforce it as the minimum TLS version for Azure Storage accounts isn't currently supported. The recommended minimum TLS version is TLS 1.2. Clients using the latest TLS versions will automatically negotiate to use TLS 1.3 if available.
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> [!TIP]
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> Azure Storage relies on Windows implementation of SSL that isn't based on OpenSSL and therefore isn't exposed to OpenSSL related vulnerabilities.
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Azure Storage accounts permit clients to send and receive data with the oldest version of TLS, TLS 1.0, and above. To enforce stricter security measures, you can configure your storage account to require that clients send and receive data with a newer version of TLS. If a storage account requires a minimum version of TLS, then any requests made with an older version will fail.
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Azure Storage accounts permit clients to send and receive data with TLS versions 1.2 and above. When a storage account requires a minimum TLS version, any request that uses an older version will fail.
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This article describes how to use a DRAG (Detection-Remediation-Audit-Governance) framework to continuously manage secure TLS for your storage accounts.
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