*Source: Tech-Ex (
http://technologyexpert.blogspot.com...covered.html)*
_________
With increased popularity (
http://technologyexpert.blogspot.com...rd-at-731.html) among consumers comes increased popularity among malware writers, as they see more opportunity for $$$.
A "rogue application" or "rogue software (http://en.wikipedia.org/wiki/Rogue_software)" is one that "uses malware to advertise or install itself or to force computer users to pay for removal of nonexistent spyware."
F-Secure claims (
http://www.f-secure.com/weblog/archives/00001362.html) to have found the first such app for the Mac.
More...