arXiv:2609.28613v1 Announce Type: new Abstract: Most studies of prompt injection focus on generative agents, leaving their effects on models with schema-defined outputs unclear. We examine these effects in Jev, a non-generative decision model, using 510 reconstructed InjecAgent cases. Malicious content shifts action probabilities but rarely causes Jev to select the attacker's target.
Decision Hijacking: Prompt Injection Attacks on Jev's Typed Probabilistic Decisions
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