This paper makes use of a new development in social psychology, Positioning Theory, the study of the way rights and duties are ascribed, attributed and justified to and by individuals in local social groups. It links this theory with a generally Vygotsky inspired approach to understanding the means by which people are brought into terrorist networks. Focusing on the use of the Internet as a device to bring mentor and novice together, the unique role of chat rooms and personal conversations made possible by the Internet in this psychological process is revealed. Examining Vygotsky's ideas about the influence of a collective identity on the development of individual identities by psychological symbiosis in the Zone of Proximal Development (ZPD) sheds new light on the positioning of terrorist recruits. Incorporating Wittgenstein's concept of hinges into understanding the groundings of individual positions explains how the jihadist form of life turns on the unexamined grounding of beliefs about the non‐believers.