ABSTRACT
This chapter argues that an important part of strategies development of international cyber norms, or shared expectations among states regarding their behavior and responsibilities in cyberspace. States are facing a growing crisis of cybersecurity. With many state and non-state actors having significant cyber attack capabilities, states need strategies that will protect their societies, economies, military, and governments from such disruptive or destructive attacks. The challenge is greatest for the technologically advanced countries, like the United States, whose power and welfare most heavily depend on computationally managed processes and global networks. States' acceptance of a norm can constrain and regulate their behavior in specific situations, and, to the extent that other states are likely to sanction a state's violation of the norm, the constraint will be greater. States will adopt some cyber norms and willingly accept the associated constraints, because they have a common interest in sustaining and developing cyberspace.
