YOU LEARNED IN THE PREVIOUS CHAPTER how to harden your Microsoft Windows operating system. Now that your operating system is secure, you can focus on securing the software that runs in the operating system. Operating system software is different from application software. Regardless of how secure your operating system is, one vulnerable application can put your organization's data at risk. This chapter will teach you about the most popular Microsoft applications. You will also find out how to make each one more secure to protect your organization's data.