Cybersquatting (also known as domain squatting), according to the United States federal law known as the Anticybersquatting Consumer Protection Act, is registering, trafficking in, or using a domain name with bad faith intent to profit from the goodwill of a trademark belonging to someone else. The cybersquatter then offers to sell the domain to the person or company who owns a trademark contained within the name at an inflated price.
Most of the people that do this are selling fake antivirus. Selling fake AV products is one of the most recent socially-engineered scams and has become very popular. Fake AV is a program that does not do anything wrong and thus was initially difficult for real AV programs to detect. Instead of trying to steal information or do bad things to a user's computer, all it did was pop up a real-looking message pretending to be from the user's antivirus program. This message would tell the user that they were infected and that the infection could be fixed by buying the product. After buying the fake product, the message would of course stop. One of the recent sites even offered toll-free 800 number ordering support for customers that were having problems ordering online. After the purchase you really have no antivirus protection and your pc is being attacked. Have you noticed that with a lot of the big antvirus companies when you get to the renewal period that you tend to see more viruses? This is done to scare you into renewing. Wow, look at all those viruses, I better pay. Do your research and ask questions before purchasing. It will save you time and money.

