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e. Hypertext Transfer Protocol Secure ( HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses cryptography 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, Secure Sockets Layer (SSL). The protocol is therefore also referred to as HTTP over TLS,  or HTTP over SSL .
HTTPS is encrypted in order to increase security of data transfer. This is particularly important when users transmit sensitive data, such as by logging into a bank account, email service, or health insurance provider. Any website, especially those that require login credentials, should use HTTPS.
As a result, HTTPS is far more secure than HTTP. A website that uses HTTP has http:// in its URL, while a website that uses HTTPS has https://. What is HTTP? HTTP stands for Hypertext Transfer Protocol, and it is a protocol – or a prescribed order and syntax for presenting information – used for transferring data over a network. Most information that is sent over the Internet, including website content and API calls, uses the HTTP protocol.
An HTTP cookie (web cookie, browser cookie) is a small piece of data that a server sends to a user's web browser. The browser may store the cookie and send it back to the same server with later requests. Typically, an HTTP cookie is used to tell if two requests come from the same browser—keeping a user logged in, for example.
Hypertext Transfer Protocol Secure (HTTPS) is a protocol that secures communication and data transfer between a user's web browser and a website. HTTPS is the secure version of HTTP. The protocol protects users against eavesdroppers and man-in-the-middle ( MitM) attacks. It also protects legitimate domains from domain name system (DNS) spoofing attacks.
HTTPS is very similar to HTTP, with the key difference being that it is secure, which is what the s at the end of HTTPS stands for. HyperText Transfer Protocol Secure uses a protocol called SSL (Secure Sockets Layer) or TLS (Transport Layer Security), which essentially wraps the data between your browser and the server in a secure, encrypted tunnel over port 443 .
HTTP is the foundation of data communication for the internet. It is responsible for establishing the connection between web servers and clients (usually web browsers), and then transmitting webpages and online documents to netizens. HTTP protocol appears as a prefix next to the website URL in the web browser.
HTTPS is the use of Secure Sockets Layer ( SSL) or Transport Layer Security (TLS) as a sublayer under regular HTTP application layering. HTTPS encrypts and decrypts user HTTP page requests as well as the pages that are returned by the web server. It also protects against eavesdropping and man-in-the-middle ( MitM) attacks.
Hypertext Transfer Protocol (HTTP) is the way servers and browsers talk to each other. It’s a great language for computers, but it’s not encrypted. Think of it this way. If everyone in the world spoke English, everyone would understand each other. Every browser and server in the world speaks HTTP, so if an attacker managed to hack in, he could read everything going on in the browser, including that Facebook username and password you just typed in.
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