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Automated Adversarial Discovery for Safety Classifiers

Yash Kumar Lal, Preethi Lahoti, Aradhana Sinha, Yao Qin, Ananth Balashankar


Abstract
Safety classifiers are critical in mitigating toxicity on online forums such as social media and in chatbots. Still, they continue to be vulnerable to emergent, and often innumerable, adversarial attacks.Traditional automated adversarial data generation methods, however, tend to produce attacks that are not diverse, but variations of previously observed harm types.We formalize the task of automated adversarial discovery for safety classifiers - to find new attacks along previously unseen harm dimensions that expose new weaknesses in the classifier.We measure progress on this task along two key axes (1) adversarial success: does the attack fool the classifier? and (2) dimensional diversity: does the attack represent a previously unseen harm type?Our evaluation of existing attack generation methods on the CivilComments toxicity task reveals their limitations: Word perturbation attacks fail to fool classifiers, while prompt-based LLM attacks have more adversarial success, but lack dimensional diversity.Even our best-performing prompt-based method finds new successful attacks on unseen harm dimensions of attacks only 5% of the time.Automatically finding new harmful dimensions of attack is crucial and there is substantial headroom for future research on our new task.
Anthology ID:
2024.trustnlp-1.2
Volume:
Proceedings of the 4th Workshop on Trustworthy Natural Language Processing (TrustNLP 2024)
Month:
June
Year:
2024
Address:
Mexico City, Mexico
Editors:
Anaelia Ovalle, Kai-Wei Chang, Yang Trista Cao, Ninareh Mehrabi, Jieyu Zhao, Aram Galstyan, Jwala Dhamala, Anoop Kumar, Rahul Gupta
Venues:
TrustNLP | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
13–26
Language:
URL:
https://aclanthology.org/2024.trustnlp-1.2
DOI:
10.18653/v1/2024.trustnlp-1.2
Bibkey:
Cite (ACL):
Yash Kumar Lal, Preethi Lahoti, Aradhana Sinha, Yao Qin, and Ananth Balashankar. 2024. Automated Adversarial Discovery for Safety Classifiers. In Proceedings of the 4th Workshop on Trustworthy Natural Language Processing (TrustNLP 2024), pages 13–26, Mexico City, Mexico. Association for Computational Linguistics.
Cite (Informal):
Automated Adversarial Discovery for Safety Classifiers (Lal et al., TrustNLP-WS 2024)
Copy Citation:
PDF:
https://aclanthology.org/2024.trustnlp-1.2.pdf