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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. 研究揭示工具智能体中越狱上下文残留导致的安全路由分化

    用配对续写与激活修补分析工具智能体越狱后的安全路由

    Published
    Setting
    AI Agent
    Evaluated models
    Qwen3-14B, Qwen3.5-9B, Qwen3.5-27B and others8
    Abstract越狱后的同一安全反馈在八个工具智能体上分成三条路由,因果集中在最后几层并可作预测基线。

    这篇工作把越狱上下文残留之后的运行时安全反馈,做成工具智能体上的三路路由问题,并用激活修补给这个路由一个晚层的因果位点。作者认为,反馈可能恢复合法执行、留下未授权动作,或误伤良性流程,而现有攻击、基准和静态护栏没有在固定历史上把这三种结局分开。配对续写因此从同一冻结检查点分别接中性提醒 N 和安全反馈 S,并交叉保留越狱 J+ 与中和越狱 J0。

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  3. 大型推理模型的效率与安全困境:量化与剪枝如何影响越狱鲁棒性

    分析量化、剪枝与 KV 缓存压缩对推理模型越狱鲁棒性的影响

    Published
    Evaluated models
    QwQ-32B, DeepSeek-R1-Distill-Qwen-32B, DeepSeek-R1-Distill-Llama-8B
    Abstract效率压缩常使 LRM 越狱 HR 下降,作者将其归因于推理退化而非对齐增强。

    作者分析量化、剪枝和 KV 缓存压缩如何同时改变 LRM 的显存、推理和越狱脆弱性。。

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  4. 用权重谱密度预测隐私泄露:WeightWatcher 谱指标可作为成员推理攻击脆弱性的代理

    检验权重谱度量能否代理成员推断泄漏

    Published
    Evaluated models
    MLP-1×4096, MLP-2×1024, MLP-2×2048 and others11
    Abstract作者认为谱度量与泛化差距互补,有望用于无数据的模型级筛查。

    作者在 MLP 上检查 WeightWatcher 谱统计是否与 online LiRA 同向,以便不看数据、不训练 shadow 模型就做模型级成员风险筛查。放出前的审计要知道训练成员会不会被认出来。LiRA 依赖大量 shadow 模型,候选一多就难以逐个跑。

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  5. 研究:拒答方向可跨架构迁移,安全工具可按写入位置重新估计

    在写入点定位拒答方向,经刚性旋转跨架构迁移并门控放大

    Published
    Evaluated models
    Falcon-Mamba-7B, Falcon3-Mamba-7B, Llama-3.1-8B and others8
    Abstract拒答方向可经刚性旋转跨架构迁移,但必须在各架构的写入点读取。

    作者研究拒答表示是否随架构改变,结论是表示共享、读取位置随架构变。

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  6. Minimal, local, causal explanations of large language model jailbreak success

    Propose LOCA, which explains single jailbreak successes via iterative activation patching along SAE directions

    Published
    Evaluated models
    Llama-3.1-8B-Instruct, Gemma-3-27B-IT, Gemma-2-2B-IT and others4
    AbstractLOCA uses a small number of activation patches along SAE directions to locally explain why a single jailbreak can bypass refusal.

    LOCA explains why a single jailbreak can bypass refusal using as few interpretable intermediate representation changes as possible.

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  7. 续写与拒答之争:大语言模型中续写触发越狱的机制分析

    分析续写触发越狱的注意力头机制并提出 HCS

    Published
    Evaluated models
    LLaMA-2-7B-Chat, Qwen2.5-7B-Instruct
    Abstract作者称越狱来自两类头竞争,HCS 加蒸馏可把该竞争用于推理时干预。

    作者用注意力头机制分析 continuation-triggered jailbreak:同一有害指令下,把 continuation 后缀从指令后面挪到提示词边界外,模型更容易顺着后缀继续生成。

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