Question

what is the purpose of internet security

Answer 1

Internet security is a branch of computer security specifically related to the Internet, often involving browser security but also network security on a more general level, as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet.[1] The Internet represents an insecure channel for exchanging information leading to a high risk of intrusion or fraud, such as phishing[2], online viruses, trojans, worms and more.

Many methods are used to protect the transfer of data, including encryption and from-the-ground-up engineering. The current focus is on prevention as much as on real time protection against well known and new threats.

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Answer 2

Antivirus software and internet security can protect a programmable device from attack by detecting and eliminating viruses;
Antivirus software were mainly share ware in early years of the internet, but now many free security application on the internet to choose for all platforms