Research

AutoBackdoor: Automating Backdoor Attacks via LLM Agents

Page published

Publication date unknown · First observed: 13 Nov 2026

Coverage timeline

13 Nov 2026aclanthology.orgobserved

Single-source research — one report is available.

Why it matters

AutoBackdoor demonstrates how agents can automate training-data poisoning, highlighting the need to validate fine-tuning data and test customized LLMs for hidden, trigger-dependent behavior.

AutoBackdoor is a research framework that uses LLM agents to generate backdoor triggers, construct and refine poisoned training samples, and produce backdoored models through fine-tuning. The paper reports attack success above 90% using a small number of poisoned samples in experiments covering LLaMA-3, Mistral, Qwen, and GPT-4o, with limited protection from the defenses evaluated.