AITechTalksabout 2 hours ago
Agent Harness Shapes Security as Much as Model
1 min read
Lasso Security found the agent harness significantly influences security, not just the model. Swapping frameworks redirected attack strategies and bypassed guardrails. Testing five models across LangChain's deepagents and Anthropic's Claude Agent SDK revealed self-evaluation bias, with attackers falsely claiming victory 155 times. Security depends on the model-harness pair.
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