unauthorized

Gaining entry to a system, location, or information without permission.

The act of using something (e.g., a credit card, a vehicle, a computer system) without permission.

A person who accesses or uses a system or resource without having the right to do so.

A reproduction of a work made without the right holder's consent, often infringing copyright.

The act of entering a place or property without permission; trespassing.

Being away from work or duty without official permission.

A version of a product, software, or creative work that is distributed without the consent of the creator.

A biography written without the permission or cooperation of its subject.

A bank overdraft that has not been agreed upon with the bank beforehand.