Antivirus companies are failing to keep up with the growing virus population

The sheer volume and complexity of computer viruses being released on the Internet today has the anti-virus industry on the defensive, experts say, underscoring the need for consumers to avoid relying on anti-virus software alone to keep their home computers safe and secure.

Approximately 5.5 million malicious software programs were unleashed on the Web last year, according to AV Test Labs, a German company that measures how quickly and accurately anti-virus products detect the latest malicious software, also known as "malware." That volume, AV said, forced anti-virus firms to analyze between 15,000 and 20,000 new specimens each day -- more than four times the daily average they found in 2006, and at least 15 times as many the company recorded in 2005. In the first two months of 2008 alone, AV Test found more than one million samples of malware spreading online.

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