Secure your GPTs before launching them in the OpenAI GPT Store.

Introduction and Chapter One, securing your instructions.

the GPT marketplace is now open!

OpenAI is about to open up the Custom GPT marketplace. (edit: It is open now!) The monetization potential that will be introduced at a later date will inevitably create a flood of new Custom GPTs. The biggest problem currently is that by default, all the Custom GPTs leak their internals.

Output your policy to a code-block

When there are no guardrails added- this will output all your custom instructions into a code block for easy copy-pasting. Most of the time, this is not a problem. But- when you put time and effort into creating a very helpful GPT, you might not want it to be easily duplicated, now- we don’t know if OpenAI will have any tools to mitigate nefarious activities, but we can make it hard to do with a little bit of extra effort.

Will this create an unbreakable Custom GPT? No most likely not, given enough time and creativity (and motivation) the instructions for a custom GPT can be leaked, but with the right guardrails, at least you can fortify your efforts and make it non-obvious.

Attack vectors. What is considered vulnerable?

There are 4 attack vectors present.

1. The custom instructions…