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Weikai Lu

3 accepted papers

2026

ARGUS: Defending Against Multimodal Indirect Prompt Injection via Steering Instruction-Following Behavior

CVPR 2026

Multimodal Large Language Models (MLLMs) are increasingly vulnerable to multimodal Indirect Prompt Injection (IPI) attacks, which embed malicious instructions in images, videos, or audio to hijack model behavior. Existing defenses, designed primarily for text-only LLMs, are unsuitable for countering

Cited by 0SourcecodeScholar
2025

SEA: Low-Resource Safety Alignment for Multimodal Large Language Models via Synthetic Embeddings

ACL 2025long

Multimodal Large Language Models (MLLMs) have serious security vulnerabilities. While safety alignment using multimodal datasets consisting of text and data of additional modalities can effectively enhance MLLM’s security, it is costly to construct these datasets. Existing low-resource security alig…