Internet security is a branch of computer security specifically related to the Internet, which often involves browser security, but also the security of the network at a more general level, as it applies to other applications or operating systems in its set. Its objective is to establish rules and measures to use against attacks through the Internet. The Internet represents an unsafe channel for the exchange of information that leads to a high risk of intrusion or fraud, such as phishing. Different methods have been used to protect data transfer, including encryption and tuning engineering.