So the word "hijack" describes what happened correctly then..
As you quoted from this source..
hiˇjack also
highˇjack (h


j

k

)
Informal
tr.v. hiˇjacked also
highˇjacked,
hiˇjackˇing also
highˇjackˇing,
hiˇjacks also
highˇjacks 1. a. To stop and rob (a vehicle in transit).
b. To steal (goods) from a vehicle in transit.
c. To seize control of (a moving vehicle) by use of force, especially in order to reach an alternate destination.
2. a. To steal from as if by hijacking.
b. To swindle or subject to extortion
hijack - definition of hijack by the Free Online Dictionary, Thesaurus and Encyclopedia.
Although how you hijack a broswer or a computer beats me ????