We introduce the concept of poaching, the risk that in any transactional relationship information that is transferred between parties for purposes specified in the contract will deliberately be used by the receiving party, for purposes outside the contract, to its own economic benefit, and to the detriment of the party that provided the information. We argue that this form of transactional risk, a component of transactions costs, is increasingly important in our service-centered, information-driven, post-industrial economy. Using case examples and a discussion of the related literature, we show and discuss the conditions under which shared information creates the potential for poaching, examine the impact and efficacy of traditional remedies for contractual problems in managing poaching, and identify additional mechanisms for managing poaching risk. Our analysis suggests that the nature of these risks and their remedies are fundamentally different that those considered in previous theories of supplier relations and contractual governance.