What does blue shield mean?

Blue Shield is an Internet security symbol developed by Symantec. It means that the website has used Symantec SSL certificate, which can provide safe and reliable data transmission. When the browser visits the website, the blue shield icon will be displayed, which proves that the website has been verified and encrypted and the user's information has been protected. If the website doesn't use S-blue shield, we should be careful and input personal information carefully.

S Blue Shield encrypts network data through SSL/TLS technology. SSL/TLS is a network transmission protocol, which can ensure the security of data transmission and prevent information leakage. When we enter our password or credit card number in the browser, the information will be encrypted and only the target website can decrypt them. Therefore, S-blue shield can provide users with a relatively safe network environment to prevent hackers from stealing users' private information.

What is the basic working principle of S Blue Shield?

The basic working principle of S-blue shield is to establish a secure channel to protect the data transmission process on the Internet. Here, SSL protocol protects data through two key steps. First, SSL protocol uses encryption technology to encrypt data, and then sends the encrypted data to the server. The server will decrypt the received data and then take corresponding actions according to the instructions. Through this process, data can be protected from being stolen in the middle and personal information of users can be protected from being abused. Therefore, S-blue shield is a safe and reliable network identification symbol, which can make users feel more at ease when shopping and sending emails online.