Cybersecurity is a leading national problem for which the market may fail to produce a solution because individuals often select less than optimal security levels in a world of positive transaction costs. The problem is compounded because the insecure networks extend far beyond the regulatory jurisdiction of any one nation or even coalition of nations. This book brings together the views of leading law and economics scholars on the nature of the cybersecurity problem and possible solutions to it. Many of these solutions are market based, but in need of aid, either from government or industry groups or both.