As is the situation with any kind of software answer, antivirus programs use pc resources – they open files, reading information in them, unpack archives for deciphering etc . The more thorough the info scanning is, the more learning resource consumption will be. Therefore , it is necessary to balance method acceleration and the higher level of security supplied – a great iron door protects better than a thin one nevertheless requires even more effort to spread out and close.

For many people, it could seem that each antivirus alternatives are the same – the products of various companies differ only by design and marketing. Certainly, it is true that market with regards to standard anti-virus solutions is very consolidated, with Symantec, McAfee and NAI (Trend Micro) prominent the market in terms of revenue.

But it is additionally the case that, despite this all, there are still a few problems with antivirus security. The main one is that, as mentioned previously above, antivirus protection relies on the fact that viruses comply with a set of clear rules. Yet , these rules are not fixed, but rather continuously transformation according to the desired goals of the villain computer underground. As a result, not necessarily possible to make a universal virus scanner that can always detect all of the viruses and Trojans.