WhatsApp Introduces Private AI Chat Mode
WhatsApp has launched a new "incognito" mode for its AI chatbot, enabling private conversations where neither the user nor WhatsApp will retain or monitor the chat content. When this feature is activated, past conversations disappear from the user's chat history, ensuring enhanced privacy.
Will Cathcart, head of WhatsApp, explained that many users desire confidential AI interactions on sensitive topics such as health, relationships, and finances, without those discussions being accessible to others.
"We've heard from a lot of people that they feel some discomfort about sharing [personal] information with the company, yet they want the answers," Cathcart said regarding the new feature.
Privacy and Accountability Concerns
Despite the privacy benefits, cybersecurity experts have raised concerns about the potential lack of accountability. Professor Alan Woodward from Surrey University highlighted that if issues arise from AI interactions, WhatsApp would have no access to chat histories to investigate or address problems.
"Personally I think what you ask an AI should remain private as some people ask it very personal matters - but you are placing a great deal of trust in the AI not to lead users astray," Woodward told the BBC.
He also noted the risk that disappearing messages could prevent retrieval of evidence in cases where AI chats might contribute to harm, death, or suicide.
Background on WhatsApp and Meta AI
WhatsApp is owned by Meta, the parent company of Instagram, Facebook, and Messenger. Meta AI was integrated into WhatsApp last year but faced criticism from users who were unable to disable the feature. However, by May 2025, Meta CEO Mark Zuckerberg announced that Meta AI had reached one billion users across its platforms.
"We've heard from a lot of people that they feel some discomfort about sharing [personal] information with the company, yet they want the answers," Cathcart reiterated.
Most AI companies currently store some data from chatbot interactions, often using it to train future models unless users pay for premium enterprise accounts. Zuckerberg described WhatsApp's incognito mode as the "first major AI product where there is no log of your conversations stored on servers."
Technical Details of Incognito Mode
The technology behind WhatsApp's incognito mode differs from the platform's end-to-end encryption but is considered "the equivalent," according to Cathcart. Professor Woodward indicated that introducing this second system poses a low risk to WhatsApp's existing security.
Cathcart clarified that initially, incognito mode will only process text inputs rather than images. Additionally, Meta AI's safety mechanisms will prioritize caution, refusing to respond to requests that could be harmful or illegal.
AI Chatbot Exclusivity and Meta's Investment
WhatsApp has blocked access to other AI chatbots on its platform, ensuring that its billions of users interact exclusively with Meta's AI.
Investment analyst Susannah Streeter from Wealth Club commented on Meta's substantial AI spending:
"Meta is on track to shell out $145bn [£107bn] on AI infrastructure in 2026, and investors want to see a lot more bang for those mega bucks," she said. "Investors are nervous about the scale of the spending, but Meta is counting on the push leading to significant returns. It's building out AI infrastructure to supercharge its platforms and if it works it could make its advertising and commerce empire even more dominant."
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