Transport Layer Security (TLS) is a standard cryptographic protocol that ensures privacy and data integrity between clients and services. Each new version of TLS has increased protection against unauthorized data inspection.
Azure Storage now offers administrators the flexibility to specify the minimum version of TLS that a client application must use to communicate with a storage account. Microsoft recommends that you follow a DRAG (Detection-Remediation-Audit-Governance) framework to continuously manage secure TLS for your storage accounts.
To learn more, see Enforce a minimum required version of TLS.