{"ID":2823249,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2601.00936","arxiv_id":"2601.00936","title":"Emoji-Based Jailbreaking of Large Language Models","abstract":"Large Language Models (LLMs) are integral to modern AI applications, but their safety alignment mechanisms can be bypassed through adversarial prompt engineering. This study investigates emoji-based jailbreaking, where emoji sequences are embedded in textual prompts to trigger harmful and unethical outputs from LLMs. We evaluated 50 emoji-based prompts on four open-source LLMs: Mistral 7B, Qwen 2 7B, Gemma 2 9B, and Llama 3 8B. Metrics included jailbreak success rate, safety alignment adherence, and latency, with responses categorized as successful, partial and failed. Results revealed model-specific vulnerabilities: Gemma 2 9B and Mistral 7B exhibited 10 % success rates, while Qwen 2 7B achieved full alignment (0% success). A chi-square test (chi^2 = 32.94, p \u003c 0.001) confirmed significant inter-model differences. While prior works focused on emoji attacks targeting safety judges or classifiers, our empirical analysis examines direct prompt-level vulnerabilities in LLMs. The results reveal limitations in safety mechanisms and highlight the necessity for systematic handling of emoji-based representations in prompt-level safety and alignment pipelines.","short_abstract":"Large Language Models (LLMs) are integral to modern AI applications, but their safety alignment mechanisms can be bypassed through adversarial prompt engineering. This study investigates emoji-based jailbreaking, where emoji sequences are embedded in textual prompts to trigger harmful and unethical outputs from LLMs. W...","url_abs":"https://arxiv.org/abs/2601.00936","url_pdf":"https://arxiv.org/pdf/2601.00936v1","authors":"[\"M P V S Gopinadh\",\"S Mahaboob Hussain\"]","published":"2026-01-02T10:49:06Z","proceeding":"cs.CR","tasks":"[\"cs.CR\",\"cs.AI\"]","methods":"[\"Large Language Model\",\"Language Model\"]","has_code":false}