Conventionally, crime is regarded principally as harm or wrong and the dominant ordering practices arise post hoc. In the emerging pre-crime society, crime is conceived essentially as risk or potential loss, ordering practices are pre-emptive and security is a commodity sold for profit. Though this dichotomy oversimplifies a more complex set of changes, it captures an important temporal shift. As the intellectual offspring of the post-crime society, criminology must adapt to meet the challenges of pre-crime and security. This article examines the key features a theory of security needs to encompass. It explores the immanent capacities of criminology for change and suggests exterior intellectual resources upon which it might draw. It concludes that the pre-crime society need not be a post-criminological one.