Enter sensitive data or do online transactions only in websites secured with SSL (Secure Socket Layer). If a website is secured with SSL, you can identify by looking at the URL located at the address bar. The URL should contain HTTPS instead of HTTP. A browser displays a lock icon or a green address bar for the SSL secured website.
Whenever you are entering log-in details or submitting any form on any website or application, your details can be sent to a server through the internet. If the attacker captures your data midway, your data will be exposed. This type of attack is known as ‘Man in the Middle Attack’.
SSL transforms your details into an encrypted form. So even if the attacker captures your data midway, it will be tough for the attacker to extract the real content of this data.