HTTPS
Definition
Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It is used for secure communication over a computer network, and is widely used on the Internet. In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, its predecessor, Secure Sockets Layer (SSL).
Why It Matters
HTTPS ensures the confidentiality and integrity of data exchanged between the user's computer and the site. It prevents eavesdroppers from seeing what you are doing and protects against man-in-the-middle attacks. It is essential for any site that handles sensitive data, like passwords or credit card numbers.
Contextual Example
When you see a padlock icon in your browser's address bar, it means you are connected to the website using HTTPS. The data you send and receive is encrypted.
Common Misunderstandings
- HTTPS is now the standard for all websites, not just e-commerce or banking sites.
- It relies on digital certificates issued by a Certificate Authority (CA) to verify the identity of the website.