Hacktivism is the practice of breaking into computer systems in order to make a political or social point. People who do this might take down a website, leak papers, or leave a message — not mainly to steal money, but to protest or push a cause. The word is a blend of hack and activism. It was coined in 1994 by a member of a hacker group called the Cult of the Dead Cow. The -ism is the activity, the practice. The person who does it is a hacktivist. Though actually, news stories sometimes call any dramatic hack “hacktivism.” That stretches it. If the goal is money, revenge, or just showing off, that is hacking, not hacktivism. It is a modern media and tech word. You will hear it in the news more than in everyday chat. In many countries this kind of break-in is still a crime, even when the person says the cause is good.

駭客行動主義（為了政治或社會訴求而去入侵電腦；台灣說「駭客」，不是中國大陸較常用的「黑客」）