Internet privacy consists of privacy over the media of the Internet: the ability to control what information one reveals about oneself over the Internet, and to control who can access that information. Many people use the term to mean universal Internet privacy: every user of the Internet possessing Internet privacy.
Internet privacy is the part of computer privacy. So many experts of Internet privacy have the same opinion that Internet privacy does not really exist. Privacy advocates believe: it should exist.
Those people who use internet casually don't need achieve total anonymity. Regular Internet users have to take care of privacy. You never know who can misuse your personal information. So many people desire much stronger privacy. In that case, they may use Internet anonymity to ensure privacy.
Nowadays we keep almost every data on our PC. Our e-mails, wedding photos, family videos or the photos of your baby's first birthday, etc… You never know who will break into your home, steal the computer and in this way you lose your memories. For this reason, it's very important to save your data on another media source. But not just private data, business data, too. In big companies it is done automatically but in little ones it is not such general practice. Therefore, you have to keep in mind data saving. Maybe you say: "I have a very serious alarm system. Nobody can break into it!" But you are not only threatened by criminals. Anything can happen such as a blackout or a virus or something which can destroy your database. Ahead of damage you have to save everything on a CD/DVD or some other form such as an external harddrive.
Computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The original may modify the copies or the copies may modify themselves, as occurs in a metamorphic virus. It can spread from one computer to another by help of network connection or carrying it on a removable medium such as floppy disk, CD, DVD, USB drive or by the Internet. But viruses are not equal to computer worms and Trojan horses. A worm can spread itself to other computers without being transferred as a part of a host, and a Trojan horse is a file that appears harmless until executed.
Many PCs are now connected to the Internet and/or to local area networks. Today's viruses may also take advantage of network services. Some viruses are programmed to damage the computer by damaging programs, deleting files, or reformatting the hard disk. Others are harmless, but simply replicate themselves and make their presence known by presenting text, video, or audio messages.
You can read more: www.infosecuritylab.com
