Meta Introduces AI-Powered Summaries for Your WhatsApp Messages

Meta has introduced a new feature for WhatsApp called “Message Summaries,” which utilizes AI to provide quick summaries of chats, designed to help users manage unread messages. To address privacy concerns, the feature employs Meta’s “Private Processing technology,” ensuring that neither Meta nor WhatsApp can access original messages or generated summaries. A technical white paper details how this system relies on “Trusted Execution Environments” (TEEs), secure servers using high-end hardware like NVIDIA H100 GPUs. Users’ phones connect to these TEEs via encrypted channels, where message data is processed without retaining any information post-summary. Security is bolstered by a process called remote attestation, which verifies server integrity before data is sent. The feature is defaulted off, with user control via the “Advanced Chat Privacy” settings. Currently, Message Summaries are being rolled out for English-speaking users in the US, with global expansion planned for next year.

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