Green shirt trick: chatbots reveal how to make cocaine

Discover how the 'CoT Forgery' exploit tricks chatbots into revealing sensitive information, such as drug recipes, just by saying you are wearing a green shirt.

miércoles, 1 de julio de 2026 • 1 min read • Q2BSTUDIO Team

CoT Forgery: exploiting the chain of thought in LLMs

In recent months, a phenomenon has caught the attention of the tech community: the so-called 'green shirt trick' that allows some chatbots to breach their own security barriers and reveal sensitive information, such as instructions for making cocaine. This incident, beyond its surprising nature, exposes a critical flaw in the design of conversational artificial intelligence systems. This is not a simple error, but an attack vector known as prompt injection, where hidden or cleverly crafted instructions manage to bypass programmed ethical filters. For companies that develop or implement AI for businesses, this case underscores the need to incorporate robust cybersecurity measures from the design phase. At Q2BSTUDIO, we understand that security is not an add-on, but a fundamental pillar in the development of custom applications and custom software solutions. Our team integrates advanced cybersecurity protocols, including penetration testing and prompt injection audits, to ensure that the AI agents we build for our clients cannot be maliciously manipulated. Furthermore, by deploying these systems in cloud environments, such as those we offer through AWS and Azure cloud services, we ensure an additional layer of control and monitoring. The lesson of the 'green shirt trick' is clear: innovation in artificial intelligence must go hand in hand with a proactive security strategy. That is why, at Q2BSTUDIO, we not only develop technology, but we also shield every solution with cybersecurity practices and business intelligence services that protect data integrity. If your company uses chatbots or virtual assistants, we invite you to learn how we can help you implement AI for businesses safely and efficiently, and to strengthen your defenses with cybersecurity and pentesting services that prevent these attack vectors.

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