Perhaps, you've noticed a little lock icon next to your browser's URL bar when visiting certain websites. That's HTTPS in action. But what exactly is HTTPS? Well, HTTPS, or Hypertext Transfer Protocol Secure , is an extension of the HTTP. It is used for secure communication over a computer network, such as the internet, and is broadly used on the World Wide Web. HTTPS is a communication protocol that is built on top of the TCP (Transmission Control Protocol) protocol. The HTT