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The architecture of local privacy.

A technical note on edge-first redaction, local key custody, and the device-to-vault path behind Legocia systems.

Cloud-first memory capture creates an avoidable risk surface.

If sensitive audio, faces, or routine daily context have to pass through external infrastructure by default, the product inherits surveillance risks even when its marketing says otherwise. Privacy has to exist in the architecture, not just the policy copy.

Legocia starts with edge-first redaction and local encryption.

The device can identify sensitive regions before persistent storage, then write protected media into a vault system whose keys are generated and held under user control. Search, sync, and indexing can still exist, but they have to respect this custody model instead of bypassing it.

The practical result is narrower blast radius.

When local systems fail, they fail closer to the user and with fewer external dependencies. That does not remove the need for security engineering, but it changes the problem from mass centralized exposure to bounded, inspectable systems with clearer trust assumptions.

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