Antivirus is a product that has been advertised as a normal product similar to detergent, toothbrush or a car. Antiviruses, despite their popularity have flaws.
Antivirus programs are unable to keep up with the variety and number of new malwares created every day. It’s an arms race and far from all antivirus software available on the web actually provide an overall security level that is close to 100 100%.
Another problem is that Trojans and viruses can manipulate the computer’s software to ensure that it cannot detect them. This may happen because the virus alters the antivirus program’s settings or because it is able to create false positives by exploiting one of its own functions or features.
There are numerous instances where the antivirus program is unable to recognize files, even if they are dangerous. The antivirus software has not yet had a chance to adding the file to its www.pceasyblog.org/what-do-you-know-about-avast-whitelist database. To do that it must analyse the file and then compare its contents with known malicious files that are in the antivirus’s database. This is a lengthy and resource-intensive process. The slower it runs it is, the less accurate the detection. The antivirus must also install interceptors that look at events within the protected computer kernel in order to send the data to its engine.