arXiv:2610.12644v1 Announce Type: new Abstract: Backdoor Attacks on Large Language Models (LLMs) typically follow a trigger-response pattern, where satisfying a trigger condition activates a single terminal behavior. However, this single-point backdoor activation does not explore attacks in which malicious behavior develops gradually through multiple intermediate stages before reaching the terminal activation stage.
Cancerous Backdoor Attack: Gradual Activation via Invisible Tokens and A Stage Controller
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