'HTTPS (HTTP Secure)' enhances HTTP with security, encrypting communication via TLS or SSL. This secure version of HTTP is vital for safeguarding data integrity and privacy during online transactions.

HTTPS is pivotal for secure data handling in sensitive operations like online banking and shopping. It encrypts sessions with digital certificates, ensuring secure connections, indicated by 'https://' in URLs and a padlock icon in browsers.

Its role in online security has made HTTPS standard for any website handling sensitive data, with search engines favoring HTTPS sites in rankings.