做音频安全或深度伪造检测的团队,终于有了一个无需手动标注就能自动发现模型盲点的工具——FoeGlass用LLM上下文学习就搞定了,建议直接跑一下开源代码看看效果。
音频深度伪造检测(ADD)模型对防御恶意TTS至关重要,但现有数据集构建面临手动收集和盲点发现低效的挑战。FoeGlass是首个黑盒自动化红队测试方法,利用LLM的上下文学习能力探索TTS输入空间,仅需黑盒访问即可生成欺骗ADD的音频样本。通过基于多样性度量的上下文设计,FoeGlass缓解了模式崩溃问题,在多个开源ADD和TTS模型上使假阴性率比基线提升高达94%。生成的攻击可跨不同ADD迁移,且用FoeGlass样本微调ADD模型可提升鲁棒性达41%。
FoeGlass: Simple In-Context Learning Is Enough for Red Teaming Audio Deepfake Detectors
Audio deepfake detection (ADD) models are critical for countering the malicious use of text-to-speech (TTS) models. Evaluating and strengthening ADD models requires developing datasets that span the space of generated audio and highlight high-error regions. Existing dataset development strategies face two challenges: (i) manual collection, and (ii) inefficient discovery of blind spots in the ADD models. To address these challenges, we propose FoeGlass, the first black-box automated red-teaming method for ADDs, which effectively discovers ADD failure modes in the space of generated audio underexplored by state-of-the-art deepfake benchmarks. FoeGlass uses the in-context learning capabilities of an LLM to explore the input space of a TTS model, generating audio samples that fool the target ADD using only black-box access to all components. By using a carefully designed context based on diversity measurements, FoeGlass mitigates the common problem of mode collapse in automated red-teaming systems. Empirical evaluations on several open-source ADD and TTS models demonstrate that data generated from FoeGlass substantially improves the false negative rates over unconditional sampling baselines and recent spoofing datasets by up to 94%, while requiring no manual supervision. Furthermore, we show that the attacks generated by FoeGlass are transferable across different target ADDs, demonstrating its broad applicability and ease of use for the automated red teaming of ADD systems. Finally, fine-tuning ADD models on FoeGlass-generated samples notably enhances the robustness of the detectors (up 41%).