While few people or machines are using the long-unsafe TLS 1.0 and 1.1, they’re still permitted in many connections, but not for long.Transport Layer Security (TLS) is a security protocol used on the Internet to protect Internet traffic. It uses encryption to protect the data from eavesdropping. TLS 1.0 turned 19 this year, a very long time on the Internet. TLS 1.1 on the other hand is used by only 0.1% of all connections and while it addresses some limitations of TLS 1.0, newer standards such as TLS 1.2 or TLS 1.3 are better suited going forward. “Two decades is a long time for a security technology to stand unmodified,” wrote Microsoft’s Kyle Pflug.
Moving to newer versions helps ensure a more secure Web. Telemetry data collected by browser makers show that more than 99% of connections use TLS 1.2 or higher already. TLS 1.3 final was published by the Internet Engineering Task Force in August 2014. Even if for Internet users there will not be operating changes, the problem will force websites owners to upgrade as they want to remain compatible to the new secure connectivity standard.