# Security and prompt injection

If you do not understand prompt injection, you are **doomed to fall victim to it**.

Read [my series on prompt injection](https://simonwillison.net/series/prompt-injection/) for the full details.

Here are [the slides and notes for this section](https://simonwillison.net/2025/May/15/building-on-llms/#llm-tutorial-intro.020.jpeg).