Defining computer safety concerns

Here my thought on defining computer safety concerns.

Information is a great value. It always has been, but she feels today, each of us. In particular, the security issues of information technologies of the bad influence of PC users, especially if it online. The sweets are fair for Standalone. The Net has many surprises. Today, we discuss information to be processed.
Viruses and worms
Viruses have a long history.

It was for the various OSes and devices. In addition, Smart-Phone, there is a virus. Among the beginners and users a lot of earth, we meet two errors similar. First, fear of viruses. Second, the abandonment of the virus.
Fear, panic is rarely capable of reliable protection against something. Thereafter, the users, intimidated by viruses, but do not know what it is and how it fights, the fear, for programs in the Internet. His computers acquired two or three anti-virus, rather harmless in the event of the window with a question on the decision or sanction of macros in Microsoft Word, users intimidated broke with cold sweat - the user is somewhere, that this macro-virus and fully, in a word "macro" is for him a value against one virus. Why does the panic Horror viruses bad? He seemed to protect the three anti-virus, your computer must recalls unnahbar digital fortress, the reliability of the information. But all is not so simple. It is amusing to observe in such "super-protected" is not a firewall. Its owner does not yet know that, in addition to viruses, there are a multitude of risks.
Firewall is to combat the danger. But it's not all. After discussion of information security password, the person, the users - it should be protected. For example, and points out what may be the protection against stress, if the person afraid of viruses? The user must closely with viruses. Accordingly, it will not be successful. It is the loss of information or working slowly. We lost passwords.

So, let's at hand, what viruses. Let's talk about their opportunities and they can damage to your system.
Viruses are programs that replace humans.
To write a virus that is not necessary for programmers high skill level. Although most of the dangerous virus, new viruses for the new operational and other things tend to be professionals.

The classic virus does not destroy it. Main function is redundant - which is an infection of files and distribution. In fact, the concept of a "virus" not "final" definition. The number of answers, "that this type of virus, but almost every definition may be subject to criticism. It is possible, some examples of viruses that are not covered by this definition.

Regarding the classification of viruses, it is rather complex issue. Programs, but under the name "virus" is possible for three as a minimum. The first, the virus, the main task is duplicated. The second, to the network - viruses that are distributed, you can use a communication network. In this category is possible, Worms - they are using e-mails. And the third type is called Trojan horse - in general, they are not multiple copies, but even destructive functions, or they are for flight information.

In general, real viruses combine several functions. For example, can be a post-worm to infect all files on a local computer to copy and nature and in combination, and sending copies via e-mail. In addition, many viruses destructive functions.
The category of spyware programs and utilities for managing latent. These programs, in general, to create by hand (or with the hook on a computer network), then a spy for the user.