It is easy to use many good affairs to the detriment of people. With the advent of the Internet, communicative communications between inhabitants of all planet improved. Information transmission rate increased. Also there were malicious applications capable to do much harm to many users.
Network viruses are special programs which extend online. For this purpose they use network protocols, the general for all users around the world. Similar unification does possible rapid reproduction and distribution of the programs murderers destroying useful data. Viruses are known long ago even if you did not pass them in school on computer science, in the West the famous hackers, writers of viruses already appeared: Morris, Mitnik and it similar.
Propagation paths of viruses
Understanding of how network viruses extend, in many respects can secure the user who is able to be protected from them. Knowledge is not only force, but also safety. Among the main propagation paths it is possible to mention:
Even if you never accepted mail from strangers, chances to be infected all the same are.
E-mail. By it viruses come in the form of the letter, then are automatically started in Word or own viewer of the program and begin to infect the operating system systematically.
The software received through FTP or Web. On many websites there are useful programs, utilities, keepers of the screen, movies, music and other software products which are potentially infected with viruses. When downloading by the user of such content and the subsequent its start, there is a danger of infection.
The infected websites. Sometimes at start of the next website the user observes a picture of how its antivirus does not allow the page to reveal and writes something it seems "The page with potentially dangerous contents". It is possible that it is infected with the virus capable to get to a system.
Self-defense in network
It is impossible to secure completely the computer and the operating system against penetration of malicious applications. Everything that remains to the user, it to reduce potential danger and whenever possible to prevent it. For this purpose there are some ways:
There is no absolute protection against viruses, there are just reasonable measures of precaution.
Not visit the pages with potentially dangerous contents, content (+18) and according to links which unknown people via ICQ sent, Skype or Mail.
Not download the program from unknown sources. In network there are a lot of checked popular resources which can use. The rest on your discretion.
Not open the received mail if it came from the unknown addresses.
Put on a system a good antivirus (Kaspersky, NOD, Avasta, etc.) and to regularly set to it updates, manually or automatically. You should not use piracy versions of similar programs. Except that it is illegal, offensive if a downloaded antivirus, will be already infected with a virus.
Care and only care – the main rule during the work, communication and entertainment online. In the world there are a lot of good people and those who just like to play a dirty trick on the neighbor. It is worth being protected from the last in the above ways.