Most people do not realize the number of issues the industry faces. Even the top antivirus products can be affected by issues. Some are minor and can easily be dealt with, while others are more severe.
One of the most significant issues is that antivirus-signature security doesn’t cover a broad range of threats. When new viruses are discovered they take a while before antivirus companies can create and release new anti-virus updates. This is because they need to wait until their products are able to detect the virus and then send the virus to be examined.
The virus is likely to spread and dozens, if not hundreds of computers are likely to be affected. It may also spread to other networks. To be efficient, anti-virus software has be able to recognize and stop these infections quickly. This means that heuristic or behaviour analysis tools are more effective than signature detection that is simple.
Another problem is that incompatibility between different antivirus programs is a common occurrence. While most antivirus software developers concentrate on developing high-quality products and removing bugs, it is true that multiple antivirus programs can occasionally cause conflicts.