Originally Posted by Techopedia

Cyberpunk is a science fiction genre in which the future world is portrayed as one in which society is largely controlled by computers, at the expense of daily life and social order. Literature, movies and video games of this genre point to a fear that the world may eventually be run solely by computers, including unusual scenarios where nonliving forms take on life-like actions and capabilities. Rebellion against large corporations and established organizations is a key aspect of cyberpunk. As such, main characters are often portrayed as alienated and marginalized by society.

Cyberpunk portrays a rapid deterioration of societal norms due to an inevitable shift toward the all-out use of computers, so much so that the lines between actual human beings and computers become blurred. Big corporations are often thrown into the mix as the culprit and the host for the dystopia that is cyberpunk.