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Confident Security, ‘the Signal for AI,’ comes out of stealth with $4.2M


San Francisco-based startup Confident Security wants to be “the Signal for AI." The company just came out of stealth with $4.2 million and a tool that wraps around AI models to guarantee data stays private.

Tech giants like OpenAI, Anthropic, xAI, Google, and others are quietly scooping up and retaining user data to improve their models or monitor for safety and security, even in some enterprise contexts where companies assume their information is off limits. Like Apple’s PCC, Confident Security’s system works by first anonymizing data by encrypting and routing it through services like Cloudflare or Fastly, so servers never see the original source or content. Rebecca Bellan is a senior reporter at TechCrunch, where she covers Tesla and Elon Musk’s broader empire, autonomy, AI, electrification, gig work platforms, Big Tech regulatory scrutiny, and more.

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