Autonomous web agents read whatever a page displays, and much of that content comes from strangers. Product reviews, seller listings, and advertisements sit beside trusted site menus on a single page. An agent that reads all of that text as instructions can be steered by any of it. A group at UC Berkeley describe Cross-Site Prompting, or XSP, as the agent-era version of Cross-Site Scripting. Their system, Prismata, sits between a web agent and the … More →
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