The US National Security Agency has issued a security advisory [PDF] this month urging system administrators in federal agencies and beyond to stop using old and obsolete TLS protocols. "NSA ...
In context: The Transport Layer Security (TLS) protocol is widely used to secure and encrypt internet communications, encompassing emails, instant messaging platforms, VoIP, and HTTPS web traffic.
Almost everyone has now migrated to TLS 1.2, and a few have moved to TLS 1.3.
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