HTTPS (Hypertext Transfer Protocol Secure) is a protocol used to transfer data between a client and server.
HTTPS (Hypertext Transfer Protocol Secure) is a variant of the web transfer protocol HTTP that adds a layer of security on the data in transit. Seeing a website with https assures the user that the website is secure and any data (such as credit card information) they enter will only be recognised by your computer and the server and cannot be captured by an outside source.
This extra layer of security helps to protect the data from being intercepted and read by third parties. HTTPS is commonly used when transferring sensitive information, such as credit card numbers or passwords.