This assignment will explain about today’s most dangerous challenges for computer users, developers, professionals and all, one common step of assault on computer is ‘malicious computer program called Virus’. They have many different types; some of them can do very devastating effect on system and cost fortune as well. Most of the organisations have big challenges to block such a data effecting viruses. Estate agency business is the one of the organisation which is always a treat because of there confidential data-transferring between clients and staffs, so it’s effecting companies network performances and productivity. We will see some of them and understand how we can protect systems.
There have been well said about viruses from Microsoft (2006) “Computer viruses are small software programs that are designed to spread from one computer to another and to interfere with computer operation. A virus might corrupt or delete data on your computer, use your e-mail program to spread itself to other computers, or even erase everything on your hard disk”.
Computer viruses are some well written programs by programmers. They will upload on your computer or server without your information and execute without your knowledge. Some of them will corrupt or delete your important data as well as application files. An even more they will attack on your system files, networks. They will distribute your data form one computer to another. It’s depends on different kind of viruses and there own capability.
“There are times when people want to destroy computers. In a time of war, a country may want to hamstring their enemy by destroying their intelligence databases (Ludwig, 1996)”. According to Spamlaws (2010) ,There are plenty of malicious software ,which is effected on computers .mostly know as viruses, spywares, trojan hourses and worms, rootkits and many other dangerous program which effect on system .
As per comparisen these are...