TL;DR
StepJack is a new benchmark for evaluating the safety of computer-use agents (CUAs) against multi-step indirect prompt injection attacks. The study reveals that these attacks can significantly increase the success rate of adversarial goals, with some CUAs experiencing up to a 31.2% increase in attack success rates.
✦ Why It Matters
Evaluate your CUA's vulnerability to multi-step indirect prompt injection attacks today.
Key Takeaways
How It Works
The pipeline developed in this study automates the decomposition of adversarial goals into multiple sub-steps, ensuring that each step appears innocuous while still achieving the overall malicious intent. This clever approach allows attackers to bypass traditional defenses by spreading their instructions across various web pages.
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