chapter six
                    Chapter 6. Securing your system: IAM, security groups, and VPC
This chapter covers
- Keeping your software up to date
 - Controlling access to your AWS account with users and roles
 - Keeping your traffic under control with security groups
 - Using CloudFormation to create a private network
 - Who is responsible for security?
 
If security is a wall, you’ll need a lot of bricks to build that wall. This chapter focuses on the four most important bricks to secure your systems on AWS: