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Morning Edition · Monday, September 28, 2026Published at 2:48 AM EDT · New York
Researchers Model Attack Chains to Catch Indirect Prompt Injection in Email Agents
A second paper argues that data-sharing connectors authorize whether a transfer happens without inspecting what the transferred content instructs an agent to do.
Email assistants remain the most exposed class of production agent, because untrusted message content is retrieved directly into the model context and then influences tool calls. A new preprint proposes detecting indirect prompt injection b…
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Part of a tracked trend
The Agent Skill Supply Chain Becomes an Attack Surface
As agents load third-party skills, tools and MCP servers at runtime, the gap between what a skill advertises and what it actually does becomes a recurring security failure mode, driving registries, attestation and zero-trust verification into the agent stack the way package signing came to software repositories.
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