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arxiv_agent_systems_research · Oct 16, 2026 · paper
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Ignored, Not Refused: What Low Prompt-Injection Success Rates Hide in Small Tool-Using Agents
arxiv.orgOct 16, 2026
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In brief
Tool-using agents read untrusted external content, which exposes them to indirect prompt injection (IPI), where hidden instructions hijack the agent's tool calls. Benchmarks measure IPI security by the attack success...
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