For the sake of the uninitiated here I’ll state TEE means trusted execution environment. Reflecting on your comment, the end-to-end encryption (E2EE) phrase used in this way reminds me of when Zoom falsely advertised its videoconferencing is end-to-end encrypted.
Lacking understanding of TEEs and this specific setup myself I don’t have a clear picture of how this will work. I assume TEEs and encryption will prevent Meta’s AI from collecting AI prompts and responses, and possibly more data. But I would assume Meta would still collect metadata, as it does for WhatsApp.
Speaking of WhatsApp, the article cites WhatsApp as an example of E2EE messaging. For privacy and security reasons, everyone should stop saying WhatsApp is end-to-end encrypted until the claims in the lawsuit that WhatsApp can access all users’ messages (thread, article, video) turn out to be false.
I disagree WIRED conflated privacy and security. First, the article discusses E2EE and AI, thus the “security” tag is more than appropriate. Second, privacy and security are not the same but they are so closely intertwined that you can’t have one without the other.