In this part of the book, you’ll learn about the security features of Microsoft Windows Vista. Chapter 9, “Protecting User Accounts and Using Parental Controls,” discusses new features for protecting user accounts, including User Account Control and parental controls. Chapter 10, “Protecting Your Computer,” discusses the dramatic changes in the Windows Vista architecture that are designed to provide multiple layers of protection for your computer. The chapter introduces the new boot environment and new security features, such as Windows Service Hardening and Network Access Protection. The chapter also discusses computer security improvements that harden the operating system against attack. Chapter 11, “Protecting Your Data,” introduces data protection and file encryption. A key focus of Chapter 11 is BitLocker Drive Encryption, which adds machine-level data protection to help protect data from being compromised on a lost or stolen computer. Chapter 12, “Networking Your Computer,” examines enhancements for networking and restricting access to Windows Vista systems. Chapter 13, “Securing Your Network Connection,” discusses security tools, including Windows Firewall and Windows Defender.