It is extremely likely that the emergence of a new virus or Trojan could infect dozens, hundreds of computers, and possibly thousands. This is especially true of network worms. Therefore, it is essential that antivirus software vendors be equipped to release security updates quickly and effectively in order to prevent these computer worms from becoming widespread.
Unfortunately, a number of AV programs are plagued by a range of major problems that compromise their effectiveness. It is important to be aware of the risks if you use any of these softwares to protect yourself.
First, many anti-virus programs cannot detect all viruses and Trojans. This is because hackers are constantly creating new malware. This means that far from any anti-virus program sold on the Web can provide a security of even a fraction of 100 percent.
A common software issue may cause symptoms that look virus-related. It is essential to look for other causes of issues, before you think that your computer is infected by virus. Certain malware may display pornographic images on the screen or even news articles. Another sign of malware is when the screen constantly displays ads for websites that you do not visit.