Computer security is generally termed as cybersecurity or Information technology security, where it will have the different collection of tools designed to protect data and throughout hackers. Computer security will help to protect from theft or damage to the hardware and software as well. The most important concern of computer security is to protect information from hackers.
Network security widely considered to protect data during their transmission. It consists of the policies and monitor of unauthorized access and modification. If unwanted accessed found then that will be directly denied. Network security is only concern about authorization of the access over the network.
Internet Security is the process of protecting data while transferring them through the interconnected network like WWW. It is the branch of computer security system and which is specifically related to the internet and browsing.