LATIDIA · Ciberseguridad

Troyanos LLM que aumentan la duración y el coste de las respuestas

arXiv:2610.24784v1 Announce Type: new Resumen: La gestión de los costes basados en tokens del uso de LLM ha surgido como un problema importante. Algunos proveedores de modelos de frontera cobran cinco veces más por token de respuesta que por mensaje t

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arXiv:2610.24784v1 Announce Type: new Abstract: Management of the token-based costs of using LLMs has emerged as a significant problem. Some frontier-model providers charge five times per response token than per prompt token, while others offer prefilling discounts for prompt tokens. In this paper, we devise a defense against a new data-poisoning attack that plants a Trojan which increases the length of the response (and hence the cost to the user) when its trigger is present in the prompt. In particular, we demonstrate how a subtle Trojan may trigger on semantically similar instructions of an instruction fine-tuned LLM.