TLS 1.3 is a cryptographic protocol that keeps your communications secure as they make their way from point A to point B. Its very hard to intercept, listen in, or crack. The Internet Engineering Task Force have stated that it will enable client and server applications to communicate over the Internet in a way that is designed to prevent eavesdropping, tampering, and message forgery. The new version makes alterations to how HTTPs connections work, and itll be harder for law enforcement to inspect traffic on their networks.”]
Source: https://blog.malwarebytes.com/security-world/2018/03/tls-1-3-is-nearly-here/