HTTPS
In plain terms
HTTP secured with TLS encryption.
Going deeper
HTTPS encrypts web traffic so it can't be read or tampered with in transit, and verifies the server's identity via certificates. It's the secure default for the web.
Under the hood
TLS provides confidentiality, integrity, and authentication; browsers now flag plain HTTP as insecure.
Examples
Secure websites, the padlock icon, encrypted APIs, web security baseline.
Think of it like...
Like sending mail in a sealed, verified armored envelope instead of an open postcard.