Defensive Design

Defensive Design

1. Input Validation

   • Checking if data meets a certain criteria before passing it into a program .
     • Eg. Checking that an email contains an "@" or a ".com"

2. Input Sanitisation

   • Removing any unwanted characters or piece of code form a program before passing it through the program

3. Authentication

   • A coding method to ensure that a user is who they say they are.
     • Can be as simple as the user entering a username and password which is compared against a stored username and password.. If they match,the user is authenticated.