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Agents Under Siege: How LLM Workflows Invite a New Breed of Cyber Threats

TL;DR for operators A support agent reads a customer email. It checks a CRM record. It calls a refund API. It writes a note into long-term memory. It asks another agent to verify policy. Somewhere in that chain, a malicious instruction hides inside a message, document, issue tracker entry, retrieved snippet, schema, or tool response. The model does not need to become “evil”. It only needs to be helpful in the wrong direction. ...

July 1, 2025 · 16 min · Zelina