Freeware application SpyBot Search & Destroy is the most popular anti-spyware tool used by Australian enterprises, according to a report on the domestic security market by analyst firm Frost & Sullivan. Commenting on the Australian Information Security Satisfaction Monitor (AISSM) study, its author, Frost & Sullivan security analyst James Turner, said although the result was unusual, he was not surprised that a freeware application could take first spot in such an important area of security. In second place came Ad-Aware, an anti-spyware application that is available as both a free version for personal use as well as an enterprise version, which costs around US$28 per user per year. Turner admitted that the survey did not ask which version of Ad-Aware was being used by enterprises but said he was surprised that Symantec’s anti-spyware products could still compete sufficiently — even though the basic Hosted Mail Security product costs around US$42 per user — to be placed third.