The word clickjacking first appeared in 2008, coined by Internet security experts Robert Hansen and Jeremiah Grossman. The term is, of course, a blend of the words click and hijacking (=illegally taking control of something). Modelling itself on the pattern of hijack, the derived form clickjack also exists, which can be used as a countable noun, to refer to an instance of clickjacking, or a transitive verb, usually occurring in the passive form, as in get clickjacked. The derived noun clickjacker is used for perpetrators.