Identity Theft is the deliberate appropriation of someone else's identity (without that person's permission) for criminal purposes.
In ''social science'' and ''psychology'':
Identity (social Science) (or "social identity"). In the social sciences, ''identity'' has specific meanings, stemming from cognitive theory, sociology, politics, and psychology. See also Identity Politics .
Cultural Identity is a person's self-affiliation (or categorization by others) as a member of a cultural group.
Gender Identity is the gender with which a person identifies (or is identified by others).
Digital Identity is the representation of identity in terms of digital information.
Online Identity is the digital identity established by computer network users.
Psychological Identity is the concept that an individual has a unique identity developed relatively late in history.