1. Introduction To Security -- Challenges of Securing Information -- What Is Information Security? -- Who Are the Attackers? -- Attacks and Defenses -- 2. Desktop Security -- Attacks on Desktop Computers -- Desktop Defenses -- Recovering from Attacks -- 3. Internet Security -- How the Internet Works -- Internet Attacks -- Internet Defenses -- 4. Personal Security -- Attacks on Personal Security -- Personal Security Defenses -- 5. Wireless Network Security -- How Networks Work -- Attacks on Networks -- Wireless Network Defenses -- 6. Enterprise Security and Ethics -- Business Continuity -- Security Policies