It is extremely likely that an emerging virus or Trojan could infect dozens, hundreds of computers, or thousands. This is particularly true for network worms. Therefore, it is imperative that antivirus software providers are able to release protection updates quickly and efficiently to stop these computer bugs from becoming widespread.
Unfortunately, a lot of AV programs suffer from a myriad of major issues that affect their effectiveness. If you’re using one of these products you must be aware of these problems so that you can take steps to safeguard yourself.
First there is the fact that a lot of anti-virus software cannot detect all Trojans and viruses. This is a direct consequence of the fact that virus writers and hackers are constantly creating new forms of malware. Therefore, far from all anti-virus programs sold off the shelf or on the Web can offer a security in any way that is 100 100%.
Another issue is that common software issues can result in symptoms that look like viruses-related problems. It’s therefore vital that you always look for more common causes of problems prior to assuming that your system is affected by a virus. Some malware could display pornographic images to the screen or articles of news. Another symptom is a window that displays advertisements for websites you do not visit.