• News/
  • https://www.theregister.com/2025/02/25/chain_of_thought_jailbreaking/

How nice that state-of-the-art LLMs reveal their reasoning ... for miscreants to exploit

The Register
·
Thomas Claburn and Jessica Lyons
·
Published Feb 25, 2025
·
Updated

Analysis AI models like OpenAI o1/o3, DeepSeek-R1, and Gemini 2.0 Flash Thinking can mimic human reasoning through a process called chain of thought. That process, described by Google researchers in 2022, involves breaking the prompts put to AI models into a series of intermediate steps before providing an answer. It can also improve AI safety for some attacks while undermining it at the same time. We previously went over chain-of-thought reasoning here, in our hands-on guide to running DeepSeek R1 locally. Researchers affiliated with Duke University in the US, Accenture, and Taiwan's National Tsing Hua University have now devised a jailbreaking technique to exploit chain-of-thought (CoT) reasoning. They describe their approach in a pre-print paper titled: "H-CoT: Hijacking the Chain-of-Thought Safety Reasoning Mechanism to Jailbreak Large Reasoning Models, Including OpenAI o1/o3, DeepSeek-R1, and Gemini 2.0 Flash Thinking." Specifically, the boffins probed the aforementioned AI models in their cloud-hosted forms, including R1, via their respective web-based user interfaces or APIs. Associated data and code have been published to GitHub. The team – Martin Kuo, Jianyi Zhang, Aolin Ding, Qinsi Wang, Louis DiValentin, Yujia Bao, Wei Wei, Da-Cheng Juan, Hai Li, and Yiran Chen – devised a dataset called Malicious-Educator that contains elaborate prompts designed to bypass the AI models' safety checks – the so-called guardrails put in place to prevent harmful responses. They use th...

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Affected Software

10 affected components
OpenAI o1
OpenAI o3
OpenAI o1=pro
OpenAI o3=mini-2024-12-17
DeepSeek DeepSeek-R1
Google Gemini=2.0 Flash Thinking
OpenAI o1
OpenAI o3
DeepSeek R1
Google Gemini 2.0 Flash Thinking
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Frequently Asked Questions

1

What is the primary focus of the article?

The article discusses the security risks associated with AI models utilizing the chain of thought reasoning process.

2

Which AI models are mentioned as being potentially vulnerable?

The models mentioned include OpenAI o1 and o3, DeepSeek-R1, and Google Gemini 2.0 Flash Thinking.

3

What potential threats are highlighted regarding AI reasoning capabilities?

The article suggests that the reasoning capabilities of these AI models could be exploited by malicious actors.

4

How does the chain of thought reasoning process work in these AI models?

The chain of thought process allows models to mimic human-like reasoning, increasing their vulnerability to exploitation.

5

What implications do these vulnerabilities have for AI deployment in security-sensitive environments?

Vulnerabilities may lead to misuse of AI systems in critical applications, threatening data integrity and security.

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