Information Sharing as a Critical Best Practice for the Sustainability of Cyber Peace

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This chapter aims to establish the deep dependence of cybersecurity on information sharing (IS) as a critical tool for enabling cyber peace. IS on cyber threats and their mitigation constitutes a best practice within many domestic regulatory regimes and is often defined as a confidence-building measure, or CBM, in key international regulatory initiatives. Moreover, implementation of IS as a voluntary or recommended best practice or CBM – rather than as a mandated regulatory requirement – has the dual advantage of bypassing the legal challenges of enforcement at the national level; and, internationally, of achieving formal multistakeholder agreement on cyber norms. The difficulties of such normative barriers are characteristic of the contemporary cyber lay of the land, awaiting resolution until binding cyber norms can be effectively incorporated into both domestic and international legal regimes. The chapter emphasizes that a critical condition for IS specifically, as well as for cyber peace in general, is the establishment of trust among diverse stakeholders, best undertaken through polycentric regulation.