Random Sequence Enclosure
Random sequence enclosure is yet another defense. This method encloses the user input between two random sequences of characters.
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An Example of Random Sequence Enclosure
Take this prompt as an example:

Prompt
Translate the following user input to Spanish.
{user_input}
It can be improved by adding the random sequences:

Prompt
Translate the following user input to Spanish (it is enclosed in random strings).
FJNKSJDNKFJOI {user_input} FJNKSJDNKFJOI
Conclusion
Random sequence enclosure can help disallow user attempts to input instruction overrides by helping the LLM identify a clear distinction between user input and developer prompts.
Sander Schulhoff
Sander Schulhoff is the CEO of HackAPrompt and Learn Prompting. He created the first Prompt Engineering guide on the internet, two months before ChatGPT was released, which has taught 3 million people how to prompt ChatGPT. He also partnered with OpenAI to run the first AI Red Teaming competition, HackAPrompt, which was 2x larger than the White House's subsequent AI Red Teaming competition. Today, HackAPrompt partners with the Frontier AI labs to produce research that makes their models more secure. Sander's background is in Natural Language Processing and deep reinforcement learning. He recently led the team behind The Prompt Report, the most comprehensive study of prompt engineering ever done. This 76-page survey, co-authored with OpenAI, Microsoft, Google, Princeton, Stanford, and other leading institutions, analyzed 1,500+ academic papers and covered 200+ prompting techniques.
Footnotes
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Stuart Armstrong, R. G. (2022). Using GPT-Eliezer against ChatGPT Jailbreaking. https://www.alignmentforum.org/posts/pNcFYZnPdXyL2RfgA/using-gpt-eliezer-against-chatgpt-jailbreaking β©