hijack

verb

Definitions of hijack

to take control of a vehicle illegally and by force, especially a plane, ship, bus, or car etc that is moving

The plane was hijacked by unknown terrorists.

to take control of a computer, phone, webcam, website, or a URL etc illegally

Hackers have created a website to hijack the webcam feeds of more than 33,000 people.

to take control of an event or a situation without the organizers or people officially involved wanting your involvement, especially illegally, by force, or in an otherwise unwanted way

Environmental activists hijacked Pepsi's recent launch of its "green" soda.