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ENFORCE DEPRECATION OF LEGACY TLS VERSIONS HOW TO
ENFORCE DEPRECATION OF LEGACY TLS VERSIONS UPDATE
ENFORCE DEPRECATION OF LEGACY TLS VERSIONS DOWNLOAD

Īlternatively, to download the TLS deprecation report through Microsoft secure score portal, follow the below steps. To download TLS deprecation report directly, you can use this Microsoft’s quick link.

The user agent string that is being used for this connection – this gives information about the type of device used for the connection.

Protocol/cipher used for the connection – this will either be TLS 1.0/1.1 or 3DES.

Usernames/IP addresses of the users/devices connecting to Exchange using TLS 1.0/1.1 or 3DES.

The report gives the following information You need to be a tenant administrator to generate a TLS deprecation report. To ease your work, Microsoft has provided a new report to track users, devices or applications that use TLS 1.0/1.1 or 3DES.

ENFORCE DEPRECATION OF LEGACY TLS VERSIONS UPDATE

Now, Microsoft has announced update regarding TLS 1.0 and 1.1 deprecation. July 2020 Update: Microsoft has announced TLS 1.0 and 1.1 deprecation in Office 365 to be October 15, 2020.ĭue to the Corona pandemic, Microsoft has temporarily halted deprecation enforcement of TLS 1.0 and 1.1. If you want to get a list of users who uses TLS 1.0/1.1, you can make use of Microsoft’s TLS deprecation report.

To ensure uninterrupted access to the Office 365 services, you need to update TLS to 1.2 or later version. Hence Microsoft will not fix new issues that are found when connecting Office 365 by using TLS 1.0/1.1.

Office 365 stopped support for TLS 1.0 and 1.1. Stay informed with Upcoming Microsoft 365 changes and end-of-support milestones. So, all client-server and browser-server combinations must use TLS 1.2 or 1.2+ to maintain a connection to Office 365 services. Office 365 will retire TLS 1.0 and 1.1 starting June 1st, 2020 in Worldwide and GCC Environments. TLS versions 1.0 and 1.1 include cipher suites based on the 3DES algorithm. As a result, if your connections are currently using a 3DES cipher suite, they will fail when 3DES cipher suites are disabled. As of February 28, 2019, Microsoft will begin retiring 3DES. Microsoft is planning to move all of its online services to TLS 1.2 or a later version to provide best-in-class encryption to its customers. There are currently four versions of TLS protocol in use today: TLS 1.0,1.1,1.2 and 1.3. For ex, Websites uses TLS to secure all communications between their servers and browsers/clients. Transport Layer Security (TLS) is a cryptographic protocol that provides secure communication over a network.

ENFORCE DEPRECATION OF LEGACY TLS VERSIONS HOW TO

To provide security to data, Microsoft made changes in TLS service.īefore moving into how to plan for 3DES removal, let’s see about TLS and how 3DES removal impacts TLS. Since 2016, it has been marked as vulnerable due to SWEET32 attack (Attackers recovered small portions of plaintext when encrypted with 3DES) and planned complete usage deprecation before 2023. Recently, Microsoft announced a significant update: “We’re retiring 3DES (Triple Data Encryption Standard) in Office 365”.ģDES cipher is mostly used for TLS/SSL to encrypt HTTPS and SSH traffic.