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Hidden Prompt Injection Attacks Hijack Autonomous AI Agents

Hidden Prompt Injection Attacks Hijack Autonomous AI Agents

ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 8.2 SecurityWeek

Malicious instructions embedded in documents, metadata, emails, images, and code can silently redirect autonomous AI agents into performing dangerous or unintended actions. This indirect prompt injection vector is particularly severe because agents operate with broad tool access and minimal human oversight, amplifying the blast radius of any successful manipulation. The attack surface spans virtually every data source an AI agent may ingest, making defence difficult without robust input validation and privilege controls.

GhostJacking Attack Hijacks AI Agents via Security Alerts

GhostJacking Attack Hijacks AI Agents via Security Alerts

ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 8.2 Dark Reading

New research dubbed 'GhostJacking' demonstrates how attackers can exploit security alerts and blocked events to manipulate and hijack AI agents, exposing fundamental identity governance gaps in agentic AI systems. The technique highlights how defensive signals—normally indicators of protection—can be weaponised to subvert agent behaviour and assume control of automated workflows. This finding has significant implications for enterprises deploying AI agents in sensitive or privileged operational contexts.

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