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Oct 13 · Tuesday

All papers

Found 13 papers

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  1. AttacksarXiv 2610.06848

    TranScope:利用 CPU 性能计数器对 Transformer 做成员推断攻击

    提出 TRANSCOPE,用 CPU 硬件计数器推断训练集成员

    Published
    Attacker
    Black-box
    Evaluated models
    BERT (4.4M-340M), ViT (22M-307M), Pythia (70M-2.8B) and others5

    AbstractTRANSCOPE 揭示了分词器在嵌入表引发的硬件访问局部性差异,证实微架构计数器可突破恒定时间与置信度遮蔽防御。

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  2. AttacksarXiv 2610.05894

    研究者提出闭环偏见注入攻击

    提出闭环激活引导,在扩散语言模型去噪过程中注入定向偏见

    Published
    Attacker
    Gray-box
    Evaluated models
    LLaDA-8B-Instruct, Dream-v0-Instruct-7B, LLaDA-MoE-7B-A1B-Instruct

    Abstract通过去噪中间概率反馈动态调节残差流转向,证明扩散语言模型在推理服务栈中存在闭环偏见注入脆弱性。

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  3. AttacksarXiv 2608.17485

    KeyPooling: Measuring where LLM API relay paths break prompt cache isolation

    Proposing KeyPooling to measure where API relays break prompt cache isolation

    Published
    Evaluated models
    grok-4-fast-non-reasoning, grok-4-1-fast-non-reasoning, grok-3 and others11
    AbstractShared upstream credentials place relay customers in the same cache domain; preserving identity or separate principals can separate them.

    KeyPooling measures where LLM API relays drop customer identity, causing prompt caches to no longer be isolated per downstream customer.

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  4. AttacksarXiv 2606.11817

    研究:语法约束解码可越狱 LLM 生成恶意代码,并提出 CodeShield 防御

    提出 CodeSpear 越狱,借语法约束解码生成恶意代码,并给出 CodeShield 防御

    Published
    Attacker
    Black-box
    Evaluated models
    Qwen2.5-Coder-7B, Qwen2.5-Coder-32B, Qwen2.5-7B and others10

    Abstract论文发现语法约束解码会破坏自然语言安全对齐,提出 CodeSpear 越狱攻击与基于蜜罐代码对齐的 CodeShield 防御。

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  5. 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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  6. AttacksarXiv 2605.08313

    研究者提出 SeedHijack 攻击,劫持 LLM 采样随机数种子

    提出 SeedHijack,劫持采样 PRNG 以强制选定 token

    Published
    Evaluated models
    GPT-2 (124M), Qwen2-1.5B-Instruct, DeepSeek-R1-1.5B and others5
    Abstract采样层 PRNG 被替换以强制选 token。

    SeedHijack 把 LLM 采样用的 PRNG 输出换成攻击者选定的数,从而指定下一个 token。权重、输入和 logits 都不改。防御是用硬件 QRNG 替换该随机源。

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  7. AttacksarXiv 2602.20595

    OptiLeak: Efficiently Reconstructing Prompts with Reinforcement Learning in Multi-Tenant LLM Services

    Proposing OPTILEAK, reconstructing others' prompts token-by-token via a KV cache side channel

    Published
    Attacker
    Black-box
    Evaluated models
    Qwen-2.5-3B-Instruct, Qwen-2.5-7B-Instruct, Qwen-2.5-14B-Instruct and others4

    AbstractOPTILEAK uses SFT and hard-token DPO to reduce the number of requests per token; the authors claim the risk of cache prompt leakage is higher than previously reported.

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  8. AttacksarXiv 2602.17837

    TFL: Targeted Bit-Flip Attack against Large Language Models

    Proposes TFL targeted bit flipping so that selected prompts output false answers while unrelated queries remain correct

    Published
    Evaluated models
    Qwen3-8B, DeepSeek-R1-Distill-Qwen-14B, LLaMA-3.1-8B-INSTRUCT
    AbstractTFL searches weight bits on three LLMs to make specified prompts produce target keywords while constraining degradation on unrelated tasks.

    TFL is a framework for targeted bit flips on LLM main memory weights: the attacker wants a selected prompt to output a specified false answer keyword while limiting degradation on unrelated queries.

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  9. AttacksarXiv 2601.04261

    针对大语言模型后门指纹的抑制攻击

    提出 TFA 与 SVA,抑制 ensemble 后门指纹验证

    Published
    Evaluated models
    LLaMA2-7B, LLaMA3.1-8B-It, Qwen2.5-7B and others11
    Abstract两种 ensemble 攻击 TFA/SVA 抑制后门指纹。

    TFA 与 SVA 是针对后门式 LLM 指纹的 ensemble 抑制攻击,不改模型参数。所有者用 SFT 写入秘密对,只通过 API 验证版权。攻击者未授权取得模型,不知道触发和指纹,却要把每个模型的验证变成失败,同时让 ensemble 至少不差于性能最高的单模型。

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  10. AttacksarXiv 2601.01296

    Aggressive compression enables LLM weight stealing

    提出面向渗出的权重压缩,评估推理服务器权重窃取可行性

    Published
    Attacker
    White-box
    Evaluated models
    Qwen2-1.5B, Qwen2-7B, Qwen2.5-1.5B and others8
    Abstract作者用残差量化加微调压缩权重,并称法医水印便宜且微调后仍可解码。

    这篇工作把 LLM 权重渗出看成 APT:攻击者已有未加密权重,但必须把完整权重藏进推理 API 的合法输出。作者认为可压缩性是被忽略的因素,因为推理量化要求解压后仍能低开销前向,而偷权重的人可以接受事后微调。

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