From A2A Attacks to Envelope-Layer Defense: Red-Teaming Evaluation of LLM Agents and a Three-Layer Isomorphic Attack-Defense Model

Name: From A2A Attacks to Envelope-Layer Defense: Red-Teaming Evaluation of LLM Agents and a Three-Layer Isomorphic Attack-Defense Model
Uploaded: 2026-10-05T08:07:02.688416+00:00
Duration: 811 s
Description: The research proposes a new way to evaluate AI agent security by focusing on a new defense dimension: the 'envelope layer,' which is how malicious content enters an agent. It introduces the A2A-TIBA attack principle, showing how attackers can implant programs that bypass agent defenses. This leads to the ELA-ITL model, a three-layer framework for comprehensive attack and defense evaluation.

The research proposes a new way to evaluate AI agent security by focusing on a new defense dimension: the 'envelope layer,' which is how malicious content enters an agent. It introduces the A2A-TIBA attack principle, showing how attackers can implant programs that bypass agent defenses. This leads to the ELA-ITL model, a three-layer framework for comprehensive attack and defense evaluation.

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