Office 365 to Require TLS 1.2 in Oct. 2018

Office 365 services will require Transport Layer Security (TLS) 1.2 or later for all connections starting Oct. 31, 2018. The change will require updates to some computers accessing Office 365. TLS 1.2 is the latest version of the protocol that replaced SSL and encrypts communications with Office 365 services. Windows 7, Windows Server 2008, and Windows Server 2008 R2, and other older OSs require updates to work with TLS 1.2.

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