A hijacker in this context is one who purchases one or many domain names, and attempts to sell them later on to the highest bidder -- often a corporation owning a famous trademark that is identical to the second level domain being sold. This disparaging term is generally reserved for those individuals who purchased the name with no business purpose in mind other than to sell it to the trademark owner or keep it from the hijacker's competitor. There are of course examples of legitimate businesses fighting over a single domain name as well. In the case of hijackers, the new Federal Trademark Dilution Act has been very effective in helping corporations with famous marks retain domain names consisting of their famous marks. However, there are also a few examples of corporations bullying people out of their domain names under the guise of trademark ownership, even though the particular use of a domain name does not constitute trademark infringement or dilution, or unfair competition in any manner. These latter kinds of cases are referred to as reverse domain name hijacking cases, and some have speculated that this conduct by companies may be met with cancellation of their mark under the doctrine of trademark misuse.
