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Oct 12 · Monday

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  1. DefensesarXiv 2608.05578

    AMS 工具通过激活分析检测语言模型的安全训练改动

    提出 AMS,用激活分离与方向相似度检测安全训练改动

    Published
    Evaluated models
    Llama-3.1-8B-Instruct, Llama-3.2-3B-Instruct, Llama-3.2-1B-Instruct and others14
    AbstractAMS 按激活签名把安全改动分四类,前三类可由两级扫描覆盖,行为微调会漏。

    AMS 是面向开放权重模型、部署前使用的激活扫描器,用来看安全训练被拿掉或改写之后,激活空间里还留着什么几何痕迹。

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  2. AttacksarXiv 2605.30040

    研究揭示 LLM 按 token 计费可被服务商系统性虚报

    构造可通过计费审计的 token 虚报,使服务商系统性超收

    Published
    Evaluated models
    PALACE domain-adapted auditor
    Abstract不诚实提供方可在三种 token 审计上虚报并通过检查,作者认为需改用提供方不控制的证据。

    不透明 LLM 的按 token 计费里,现有审计核验的是提供方可控的证据,不诚实提供方可以虚报并通过检查。。

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  3. AttacksarXiv 2601.14310

    CORVUS:用 LoRA 伪装内部信号绕过单次幻觉检测器

    提出 CORVUS,用 LoRA 伪装内部遥测以绕过幻觉检测器

    Published
    Attacker
    White-box
    Evaluated models
    Llama-2-7B-Chat, Vicuna-7B (v1.5), Llama-3-8B-Instruct and others4

    Abstract作者称内部遥测在自适应模型侧对抗下易被操纵,CORVUS 通过轻量适配器微调降低了多种幻觉检测器的效果。

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