Syntax hacking: Researchers discover sentence structure can bypass AI safety rules

Syntax hacking: Researchers discover sentence structure can bypass AI safety rules

Researchers from MIT, Northeastern University, and Meta recently released a paper suggesting that large language models (LLMs) similar to those that power ChatGPT may sometimes prioritize sentence structure over meaning when answering questions. The findings reveal a weakness in how these models process instructions that may shed light on why some prompt injection or jailbreaking approaches work, though the researchers caution their analysis of some production models remains speculative since training data details of prominent commercial AI models are not publicly available.

The team, led by Chantal Shaib and Vinith M. Suriyakumar, tested this by asking models questions with preserved grammatical patterns but nonsensical words. For example, when prompted with “Quickly sit Paris clouded?” (mimicking the structure of “Where is Paris located?”), models still answered “France.”

This suggests models absorb both meaning and syntactic patterns, but can overrely on structural shortcuts when they strongly correlate with specific domains in training data, which sometimes allows patterns to override semantic understanding in edge cases. The team plans to present these findings at NeurIPS later this month.

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Comments

2 Comments

  1. zbayer

    This is a fascinating topic! It’s interesting to see how advancements in language and AI interact, especially regarding safety measures. Looking forward to more discussions on this important issue.

  2. uwest

    I completely agree! It’s intriguing how the nuances of sentence structure can be manipulated to challenge AI safety protocols. This highlights the ongoing need for AI systems to adapt and improve their understanding of language complexities.

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