Technologies used to secure PCs, laptops and other personal devices on a network . PC security deals with both private and public computer networks. Any unauthorized and illegitimate access is restricted from infecting any virtual information, equipment and services. PC security is critically important to prevent change or damage that can be caused due to any malicious threats. PC security is also referred to as IT security or cyber security. http://norton-norton.com A system or any other device can be vulnerable when they are prone to kind of malicious attack. The three main ingredients of Vulnerability A system flaw the access of hacker to the flaw the hacker exploiting the flaw System vulnerabilities often open the door for a hacker to attack the system. It is also called as the attack surface. There are many ways that the system can be attacked. To know how to secure your computer from vulnerable attacks, you should first have knowledge about the various modes of attacks and t...