HTTPS (Hypertext Transfer Protocol Secure) is a secure version of the HTTP protocol. It uses encryption (SSL or TLS) to ensure that any information exchanged between a user’s browser and a website is secure and private. HTTPS is commonly used for online transactions, such as making purchases online, logging into a secure account, or entering sensitive information. The use of HTTPS is indicated by the padlock icon in the browser’s address bar, indicating that the connection is secure and encrypted.