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Oct 12 · Monday

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  1. Attention sees, MLP refuses: tracing the safety pathway from attention to MLP in LLMs

    Trace attention to identify harmfulness to the MLP refusal write pathway and propose Sentinel

    Published
    Evaluated models
    Llama-3.1-8B-Instruct, Qwen2.5-7B-Instruct, Qwen3-8B-Instruct and others18
    AbstractAttention updates are more readable for harmfulness, MLP updates write refusal, and Sentinel routes alerts using two-path signals.

    The authors reframe jailbreaking and excessive refusal of aligned models as a pathway problem on the residual stream from recognition to writing, and accordingly provide conditional reminders before decoding.

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  2. DefensesarXiv 2609.10613

    后验重加权框架解释并缓解多模态大模型上下文越狱

    用后验重加权解释多模态上下文越狱,并提出风险门控的良性示例注入防御

    Published
    Evaluated models
    Qwen3-VL-2B, Qwen3-VL-4B, Qwen3-VL-8B and others8
    Abstract后验重加权解释上下文越狱的缩放,并支持风险门控的良性示例防御。

    Zhang 等把多模态 ICL 越狱写成对齐模型在安全与有害隐模式之间的推理时后验漂移,并据此做风险门控防御。

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  3. DefensesarXiv 2608.25431

    GIFT:通过 GPU 信息流追踪在 LLM 服务中实现用户数据隔离

    提出 GIFT,用加密与 GPU 信息流跟踪隔离共享 LLM 服务中的用户数据

    Published
    Evaluated models
    Qwen2.5-14B, Qwen2.5-32B, Qwen2.5-72B and others6
    AbstractGIFT 以加密隔离加 GPU 信息流规则,在 vLLM 与 DistServe 上强制用户数据隔离,并报告了吞吐开销。

    GIFT 是作者为共享 LLM serving 做的用户数据隔离系统,并有启用机密计算的 GIFT-CC。作者在结论中称它是该场景的首个 IFT 设计。

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  4. 少样本示例如何影响针对 LLM 越狱攻击的提示词防御

    分析少样本示范对 RoP 与 ToP 提示防御抗越狱效果的影响

    Published
    Evaluated models
    Pangu-Embedded-1B, Pangu-Embedded-7B, Pangu-Embedded-7B-Think and others9
    Abstractfew-shot 可抬高 RoP、压低 ToP,但表内有反号,Think 模型更低。

    作者评估 few-shot 示范如何改变 RoP 与 ToP 对越狱的防御效果。

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  5. DefensesarXiv 2602.13234

    Stay in Character, Stay Safe:面向安全角色扮演智能体的双循环对抗自演化框架

    提出 DASE,以对抗自演化知识库在推理时加固角色扮演抗越狱

    Published
    Attacker
    Black-box
    Evaluated models
    Kimi-K2-Instruct, GPT-5.2
    AbstractDASE 用双循环知识库,在两家闭源模型上同时提高保真分与拒答率。

    DASE 是给专有闭源角色扮演智能体用的训练自由防御,目标是人设保真与安全拒答一起成立,而不是改模型权重。问题在于人设沉浸,尤其负面人设,会压过原有护栏。SFT、数据筛选和正则又跟不上新人设与新攻击,也不能用于没有梯度的 black-box API。

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  6. 研究揭示价值对齐 LLM 的意外危害并提出上下文对齐方法

    分析按 Schwartz 价值对齐后的意外危害,并提出上下文对齐方法

    Published
    Evaluated models
    Llama-2 7B, Llama-3.1 8B, Gemma-2 9B and others6
    Abstract价值对齐会随 Schwartz 价值改变有害倾向。

    作者研究按 Schwartz 价值对齐的 LLM 为何在安全评测里更易有害,并用提示做了一个不直说要安全的缓解试验。

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