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Private Data in ATProto: Permissioned Data Proposal

The AT Protocol proposes a new permissioned data protocol for social applications, focusing on access control while highlighting security concerns.

The AT Protocol serves as a framework for building social applications on user-owned data. This document introduces a new data protocol for permissioned data, covering personal data and socially shared content. While it offers access control, it does not ensure end-to-end encryption, raising security considerations for developers.