After web hosting when data is sent from the browser to the server, there are chances of hacking of this information. To provide security to the data sent, a standard security protocol – SSL (Secure Sockets Layer) is employed. SSL encrypts data which transmits to the server thereby provides security from data tampering and so on.
If you are transmitting sensitive information on a web site, such as credit card numbers or personal information, you need to secure it with Secure Sockets Layer encryption. If an attacker is able to intercept all data being sent between a browser and a web server they can see and use that information unless it is secured by an SSL certificate.
SSL or Secure Sockets Layer Certificates are primarily meant to protect the personal details exchanged over the sites against any kind of hacking so that the required confidentiality of such private information is maintained with domain names. This includes information such as user ID, password, credit card data, bank account details etc.
An SSL Certificate issued by a Certificate Authority to an organization and its domain/website verifies that a trusted third party has authenticated that organization’s identity. The browser lets the user know that the website is secure, and the user can feel safe browsing the site and even entering their confidential information. These certificates employ a process of encrypting the information followed by decrypting allowed only through a secret key.