Antivirus software is one of the most important software required in a computer. It must be updated regularly inorder to keep out the pesky viruses. But even after regular updates, how will you know whether your antivirus is working properly or not? Using real viruses for testing in the real world is rather like setting fire to the dustbin in your office to see whether the smoke detector is working. Such a test will give meaningful results, but with unappealing, unacceptable risks.
