Why does the website require https to prevent hacker attacks?

Why does the website require https to prevent hacker attacks?

Everyone knows a famous online saying and famous cartoon "on the Internet, no one knows that you are a dog ":

 

This is dangerous for online shopping and e-commerce, because you cannot and shouldn't trust the company called XX (XX brand) in your mind, the real-world company XX (XX brand). At the same time, the IP technology used by the Internet is to transmit all information in plain text. In this way, this makes it possible for anyone else to see all the confidential information you submit on the website without any encryption measures, because many routes are required from your computer to the website server, many people may access transmission routes and may illegally intercept or tamper with your confidential transaction information (especially bank card information ).

Https is a secure http connection, and s is secure. That is to say, if the URL in the browser address bar of the page you are browsing is https: // (generally, the website is http: //) indicates that any information you enter on this website is encrypted from your computer and transmitted to the website server. Only in this way can you ensure that the confidential information you submit on the website is automatically encrypted and transmitted to the website server without illegal interception or tampering.

In order to give users a clear understanding (users often do not pay attention to http: // or https: //), the browser makes a clear security lock mark, take the IE browser as an example. As shown in 1, the security lock mark of the IE 10 browser is displayed in the lower right corner of the status bar. If you move the cursor over the security lock, the current encryption strength (128 bits) is displayed):