Dictionary entry Trending
agent hijacking
also AI agent hijacking
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Definition of agent hijacking
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: an attack that redirects an AI agent's goals, reasoning, or tool actions toward an attacker's objective while the agent retains its legitimate access and permissions
- The security team treated the malicious document as an agent-hijacking attempt because it tried to redirect the assistant's browser actions.
- Limiting an agent's permissions can reduce the damage if prompt injection leads to agent hijacking.
Origin & history
first known use2025
The term gained wider use in AI-agent security guidance during 2025 and 2026 to describe attackers taking over an agent's runtime behavior through methods such as indirect prompt injection, poisoned tools, or manipulated memory.
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Cite this entry
"Agent hijacking." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/agent-hijacking/. Accessed 5 Oct. 2026.
Dictionary entries near agent hijacking
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