Antivirus has been promoted for a long time as a commodity like toothpaste, detergent or car. Although it is an everyday product antiviruses are not free of flaws and issues.
It’s not feasible for antivirus programs to keep up with the sheer quantity and variety of new malware being developed every day. It’s an arms race, and not all antivirus software online or in stores offers a level www.pceasyblog.org/what-do-you-know-about-avast-whitelist of security that is near 100%.
Another problem is that viruses and Trojans are able to manipulate the software on your computer so that it cannot detect them properly. This could be because the virus alters the settings for your antivirus or it’s able to create a false positive by exploiting one of its own functions or features.
In addition, there are many instances where the antivirus program does not detect files even when they are dangerous. This happens because the anti-virus hasn’t had the chance to add the file to its database yet. To do this it must analyse the file and then compare its contents with known malicious files that are in the antivirus’s database. This is a resource-intensive and lengthy process. And the more slow it is, the less accurate is the detection. The antivirus also needs to install interceptors that look at events in the computer’s kernel order to relay the information to its engine.