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cs.CR2026
The Cognitive Firewall:Securing Browser Based AI Agents Against Indirect Prompt Injection Via Hybrid Edge Cloud Defense
Qianlong Lan, Anuj Kaul
Deploying large language models (LLMs) as autonomous browser agents exposes a significant attack surface in the form of Indirect Prompt Injection (IPI). Cloud-based defenses can pr…
cs.CR2026
Silent Egress: When Implicit Prompt Injection Makes LLM Agents Leak Without a Trace
Qianlong Lan, Anuj Kaul, Shaun Jones +1
Agentic large language model systems increasingly automate tasks by retrieving URLs and calling external tools. We show that this workflow gives rise to implicit prompt injection:…
cs.CR2026★ 2 cited
Zero-Trust Runtime Verification for Agentic Payment Protocols: Mitigating Replay and Context-Binding Failures in AP2
Qianlong Lan, Anuj Kaul, Shaun Jones +1
The deployment of autonomous AI agents capable of executing commercial transactions has motivated the adoption of mandate-based payment authorization protocols, including the Unive…