The acronym HTTPS stands for HyperText Transfer Protocol Secure. It is an extension of HTTP that incorporates encryption through the use of SSL/TLS protocols, ensuring secure communication over the internet. HTTPS safeguards data transmission between web servers and clients, protecting sensitive information such as login credentials, personal details, and payment information from malicious interception. Websites utilizing HTTPS are marked with a padlock icon in browsers, signaling users that their connection is secure. This encryption is increasingly essential for building trust and maintaining online privacy.