Antivirus is a product that has long been promoted as a standard commodity similar to a toothbrush, detergent, or car. Yet, despite being a common product antiviruses are not without flaws or problems.
It’s simply not possible for antivirus programs to keep up with the sheer quantity and variety of new malware being created every day. It’s an arms race, and far from the majority of antivirus programs available on the web actually provide an amount of security that is close to 100%.
Another issue is that Trojans and viruses can manipulate the software on your computer so that it cannot detect them. This is possible when the virus alters the settings of the antivirus software or when it exploits one of its features or functions to create a false-positive.
There are a variety of instances where the antivirus software fails to detect files, even when they are clearly malicious. The antivirus software has not yet had the chance of adding the file to its database. To do this, it needs to analyze 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 more time it takes and the less accurate detection. In addition, the antivirus has to install the interceptors of system events inside the protected computer kernel, which will analyze the data and pass it to its engine for analysis.
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