The security practitioners' perspective -- Economic, political and social threats in the information age -- Critical information infrastructure and cyber-terrorism -- Attackers: internal and external -- Threats, vulnerability, uncertainty and information risk -- ICT and security governance: doing the right things the right way (and well enough) -- Concerns about what will happen next: should these things keep you awake at night? -- To define or not to define: law and policy conundrums for the cybercrime, national security, international law and military law communities -- Anonymity, actual incidents, cyber attacks and digital immobilization -- Culture clashes: freedom, privacy, and government surveillance issues arising in relation to national security and internet use -- What is cyberterrorism and how real is the threat?: a review of the academic literature, 1996-2009 -- Cyber-search and cyber-seizure: policy considerations of cyber operations and fourth amendment implications -- Terrorism and the internet: do we need an international solution? -- Case study: India - terrorism and terrorist use of the internet/technology -- China's cyber tool: striving to attain electronic shi? -- The United Kingdom's centre for the protection of national infrastructure: an evaluation of the UK government's response mechanism to cyber attacks on critical infrastructures.