Hijacking

Hijacking or highjacking is the forcible robbery from, or seizure of, a vehicle in transit.

Historically the term used to refer to robbery of trucks or other land motor vehicles (see carjacking) and aircraft skyjacking. The term arose from someone wanting a lift on a truck calling Hi, Jack (the exclamation plus the name), until this was used often as a trick by robbers.

Contemporarily the term is primarily associated with high-profile aircraft hijacking for political purposes including terrorism, although other cases have included the cruise ship Achille Lauro in 1985 which could also be considered piracy.

In Information_technology, the term hijacking is also used when Spyware or a computer virus writes itself in a computer program in such a way that whenever that program starts to work, besides its normal duties it does other things too, which the creator of the virus or spyware meant it to.

=Derived usages=

*HijackThis (a computer virus remover program) *[http://hallogram.com/hijaakpro/ HiJaak] (a computer graphics capture & processing program) *Hy-Jak was a stacking up .