For example, Google protects its Gmail user accounts against certain forms of hijacking which allow mischief-makers, among other things, to send out phishing messages ("Trapped in London with no cash. Help!") to others in a user's address book.
It also revealed the inability of the most sophisticated early warning systems in the world to stop a low-tech, tried-and-true form of terrorism: hijacking.
However, the Islamists, in the form of the Muslim Brotherhood, hijacked the process just as they did in Iran and Gaza.
"They are trying to figure their way through this thicket that they themselves have created [by] hijacking the form of a charitable organization for political purposes," Van Hollen said.
The Pakistani government, in a statement from its foreign ministry, said it was "opposed to all forms of terrorism including hijacking".
LALA Arts founder Daniel Lahoda points out that, 30 years ago, English made a name for himself by hijacking billboards, a form of art he called "subvertising".
"The crimes are more serious in Malaysia compared to Hong Kong, in the sense that there's hijacks or some form of robbery with violence," Mr. Lugg said.
That computer code, a form of malware, allows American officials to hijack the computers or route some of their data to servers that enable American espionage.
And it was done because the coalition government's original agreement about the form of a new press regulator was "hijacked by the anti-press lobby group Hacked Off and the Labour party, which cooked up an unacceptable scheme late one night".
