HTTPS is the abbreviation for Hypertext Transfer Protocol Secure – a secure version of the standard HTTP protocol that is used to send pages around the web. HTTPS combines standard HTTP with an encrypted protocol, called SSL/TLS, which ensures that transmissions cannot be intercepted or altered by third parties. The appearance of HTTPS in the web address of a site also signals you are connected to the website you have requested rather than an imposter who may attempt to steal your information.