In the 1995 film Hackers, what online alias does Dade Murphy use?

Dade Murphy uses the online alias Zero Cool in the 1995 film Hackers.

Dade is a highly skilled hacker who was convicted as a child after causing a major stock-market disruption. Because of that incident, he is banned from using computers until his eighteenth birthday. When the story begins, he moves to New York and joins a group of young hackers.

The name Zero Cool is closely associated with Dade, while other characters use aliases such as Acid Burn, Crash Override, Cereal Killer, and The Plague. Johnny Lee Miller plays Dade, and Angelina Jolie plays Kate Libby, whose alias is Acid Burn.

Hackers was directed by Iain Softley and released in 1995. Although its technology is exaggerated, the film became influential for its colorful depiction of hacker subculture, online identities, and early internet imagery.