Rogue software also known as Scareware is a FAKE program that tricks you into sharing your information and giving money to black hat hackers. It can be used either through visiting the website, or adware or spyware in your computer system. It almost tricked me but I figured it out when I looked at the address bar and noticed it was a FAKE web page so be careful!
Tip: Visit http://voices.washingtonpost.com/securityfix/2009/09/what_to_do_when_rogue_anti-vir.html to find ways to deal with a Scareware attack!