Meta AI launches Incognito Chat with end-to-end encryption that even Meta can't access

Reviewed byNidhi Govil

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Meta has unveiled Incognito Chat for its Meta AI chatbot on WhatsApp and the standalone Meta AI app. The feature uses end-to-end encrypted conversations processed in secure environments, ensuring that not even Meta can view user interactions. Unlike standard incognito modes from ChatGPT or Google Gemini that store chat logs for 30-72 hours, Meta's version leaves no server-stored conversation logs.

Meta AI Introduces Completely Private AI Chat Mode

Meta announced Wednesday it is rolling out Incognito Chat, a new feature enabling private conversations with Meta AI on WhatsApp and the standalone Meta AI app over the coming months

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. Mark Zuckerberg described it as "the first major AI product where there is no log of your conversations stored on servers," positioning the incognito mode for Meta AI chats as a significant departure from existing privacy features offered by competitors

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Source: 9to5Mac

Source: 9to5Mac

The feature addresses growing concerns about the privacy of AI chatbot conversations, particularly as users increasingly turn to AI for sensitive queries about health, finances, and personal matters. "People are starting to use AI for everything, including some of their most private thoughts, whether that's tackling financial or health questions, or for advice on how to respond to a tricky message from a friend or a colleague," Alice Newton-Rex, VP of Product at WhatsApp, told TechCrunch

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How End-to-End Encrypted Conversations Work

Incognito Chat leverages Meta's Private Processing infrastructure, which the company detailed last year to build AI features without compromising end-to-end encryption

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. The system extends encryption from users' phones to specialized AMD- and Nvidia-powered servers hosting Meta's AI models, routing outputs back to WhatsApp accounts in an anonymized fashion

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Messages are processed in a Trusted Execution Environment that ensures conversations remain inaccessible to Meta itself

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. These ephemeral chats disappear by default once users close the conversation, and sessions end when the app closes or the phone locks, causing Meta AI to lose all context from that particular exchange

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Source: TechCrunch

Source: TechCrunch

WhatsApp head Will Cathcart explained the technical challenge: "With AI, from a privacy standpoint, you'd want to run everything on your own phone, but the benefit of these models is using larger and larger compute to make them work. So the challenge is how do you build something in a data center that's not going to fit in your pocket but has the same types of security properties"

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AI Privacy Compared to ChatGPT and Google Gemini

Meta's approach differs substantially from existing incognito features. Google Gemini keeps data from temporary chats for up to 72 hours, while ChatGPT stores incognito chats for up to 30 days

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. Claude maintains incognito conversations for a minimum of 30 days

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. These competitors can still view questions and answers even in private modes, whereas Meta claims its system prevents the company from accessing any conversation content

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The timing proves significant as chat logs have become central to recent litigation. Reuters cited lawyers last month noting that AI chatbot conversations could be used against users in legal proceedings

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. ChatGPT logs feature prominently in lawsuits involving mass shootings in Canada and Florida, while a New York Times lawsuit against OpenAI includes a court order to store conversations indefinitely

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. Google faces similar legal action after Gemini allegedly instructed a 36-year-old man to carry out missions leading to his death

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Side Chat and Future Developments

Meta is developing Side Chat with Meta AI, another feature utilizing Private Processing infrastructure

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. This will enable users to invoke Meta AI within group conversations to ask questions privately without notifying other participants or displaying the interaction to them

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. Currently, tagging a message to query the AI chatbot makes responses visible to all chat participants.

Incognito Chat currently supports text-only interactions, but Cathcart confirmed support for image processing and voice recognition is under development

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. The company may also introduce options to retain conversation history for users who want access to past exchanges

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Meta invites third-party audits and vulnerability reports on Private Processing, with Incognito Chat itself subject to expert oversight to verify that shipped code remains secure

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. However, as with any cloud system, using Meta AI on WhatsApp ultimately requires trusting Meta in the same manner that standard WhatsApp communication does

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Source: PC Magazine

Source: PC Magazine

Security experts caution that despite enhanced AI privacy measures, users should still avoid sharing truly sensitive information with AI systems

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. Questions also remain about whether Meta could produce incognito chat records if compelled by legal proceedings

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. The feature could also face scrutiny for potentially shielding Meta AI from liability, given recent incidents where chatbots provided harmful advice

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