1. An attacker is guessing the password to a certain username to attempt to gain unauthorized access to a bank account. After several tries, they are able to gain access. Which defense measure could have prevented this?

2.There was recently an insider attack at your company. Someone from the IT department gained access to plans from the management department and leaked them to a competitor in exchange for money. Which defense measure could have prevented this?

3. You have created an application with many layers of defense. Since you know you are not relying on security by obscurity, it is okay to share the specifics of how you implemented security on your application.

4. Your company only allows certain people to use the “sudo” command on their Linux system. The sudo command allows users to run commands with temporary permissions. Which method of defense does this show?