In general, a rogue is someone who strays from the accepted path, is mischievous, or is a cheat. In information technology, the term has several usages.

- A rogue Internet service provider (ISP) is one that knowingly originates spam (unsolicited mass e-mail).

- A rogue Web site is one that subverts a legitimate Web site by appearing to replace it.

- In programming, rogue code is another term for code that constitutes a virus.

- Rogue is the name of an animated computer game written in UNIX. It is a dungeons-and-dragons game that has given rise to numerous variations that are popular among young people.