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AI continues to take over more and more of our day-to-day activities: Anthropic recently announced a Chrome extension that allows Claude AI to see browser activity and run actions on behalf of users, while Perplexity's Comet is an AI-powered browser that the company calls both a "personal assistant" and a "thinking partner."

Agentic browsers may be able to do a lot of things for you, such as scheduling meetings, replying to emails, and ordering DoorDash, but handing all of this control (and personal information) over to AI comes with potential security risks. One of these is a prompt injection attack, which allows hacker

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