In this chapter, you will learn what Spring Security is and how you can use it to address security concerns about your application.
We will also describe what’s new in Spring Framework and Security version 5. How to use Spring Security v5 with authentication and authorization will be introduced a bit more in detail since we will be using them a lot in this book.
Finally, we’ll take a look at the framework’s source code, how to build it, and the different modules that together form the powerful Spring Security project.
