Disscusion Question Computer network security

Write up a complete tutorial, including an analogy to explain the mechanics and a graphic to support your analogy, on one of the following areas:

1. Buffer overflows
2. SQL injection
3. Cross-Site scripting
4. DoS attacks
5. Injection attacks
6. Poisoning attacks

Consider that your audience probably isn't up to speed on how any of these work. In fact, you may want to test your tutorial on a 'casual' user (parent? teenager?) to see if they can understand what the problem is. In your responses to other students, comment on whether the tutorial fits the target audience. Is it too complicated? Too simple? Too many unexplained acronyms?