ISM-1139

Only the latest version of TLS is used for TLS connections.

Topic
Configuring Transport Layer Security
Applicable to
all

History

Priority
recommended
Mar 2022
Only the latest version of TLS is used for TLS connections.
Miscellaneous changes were made to rationale and recommendations throughout the publication to clarify content without changing intent. This included a review from the Guidelines for System Hardening chapter through to the Guidelines for Data Transfers chapter.
Oct 2019
Only the latest version of TLS is used.
Security control 1139 was modified to remove ambiguity around which versions of TLS should be supported.
Sep 2019
The latest version of TLS is used.
2015
Agencies should use the latest version of TLS.
2010
It is recommended agencies use the current version of TLS instead of SSL.