Web, domains and email
TLS
Abbreviation for Transport Layer Security
In short and in plain language
TLS is a method that encrypts links on the net.
It took over from an older method. It protects data between browser and site. Others should not be able to read or change it.
This covers things like form entries. Many websites and mail servers use it.
Definition
TLS is the encryption protocol for connections on the internet and the successor to SSL. It serves to protect data between browser and website, such as form entries, from being read or altered. Websites using HTTPS and many email servers rely on it.