"Security domains are those areas of flow of goods, people, and technologies, where a breach in security with malicious intent threatens the overall homeland security of the country. Achieving homeland security means exercising dominion over each of the homeland security domains so as to have information about the threats and vulnerabilities within the domains and be able to prevent, protect, respond and recover from security incidents in that domain. For example, achieving security in the cyber domain is not merely related to building fire-walls to prevent cyber attacks, but also includes increasing domain awareness, building a cyber response and recovery system, and developing partnerships among a range of legitimate participants in activities (including commerce) in cyber space, particularly the private sector, to reduce the consequences of an attack to the cyber network". (DHS, Capstone Doctrine Pub 1 Draft, Chapter 2, 2008, p. 2-6)