TLS is a powerful encryption protocol used to securely transfer data over networks which helps establish a reliable private communication channel. It is widely used in our daily lives in a number of applications such as web browsing, email service, file transfer, instant messaging, teleconferencing, VoIP, etc.
Over time, new attacks against the TLS protocol are discovered, resulting in newer versions being released to fill the security gaps identified. The use of obsolete versions of TLS leads to an increased risk of exploiting the vulnerabilities of the protocol by malicious users.