Competitiveness in The Antivirus Software Industry
It is generally accepted in the antivirus industry that the signature-based protection of most vendors is identically effective. If a signature is available for an item of malware, then every product (unless dysfunctional) should detect it. However, some vendors are significantly faster than others at becoming aware of new viruses and/or updating their customers signature databases to detect them.
There is a wide range of effectiveness in terms of zero day virus protection. The German computer magazine c't found that detection rates for zero day viruses varied from 20% to 68%. It is primarily in the area of zero day virus performance that manufacturers now compete.
Read more about this topic: Zero-day Virus
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“The Founding Fathers in their wisdom decided that children were an unnatural strain on parents. So they provided jails called schools, equipped with tortures called an education. School is where you go between when your parents can’t take you and industry can’t take you.”
—John Updike (b. 1932)