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EchoGram Technique Exploits AI Guardrails Using Specific Prompts

First seen 15 Nov 2025, 09:32 UTC •Theregister •96% similarity •18

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Security researchers from HiddenLayer have developed a new attack method called EchoGram, which targets the guardrails of large language models (LLMs). By using specific phrases like '=coffee', attackers can bypass these protective measures, potentially leading to harmful outputs. This vulnerability highlights the risks associated with combining multiple unsafe LLMs.

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Claude 4 Sonnet GPT-4o Meta's Prompt-Guard-86M OpenAI's GPT-4o Prompt-Guard-86M Qwen3Guard 0.6B