Measures to harden the security

You need to suggest measures that need to be followed to harden the security of your web application. Which of the following measures would you likely suggest in this context?

1. Performing a routine security audit.

2. Information should be stored in a way that makes it easy to parse it rapidly.

3. Encrypt everything including data at rest.

Options

1. Only 1
2. Only 1,2
3. only 2,3
4. All 1,2,3