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AI · Articlepublished 1d

Google designs persistent Private AI Compute memory around device-held keys

Google has documented a stateful extension to Private AI Compute that stores per-user AI memory as encrypted cloud data while a user device retains the key material needed to unlock it. The design uses attested enclaves, an open-source Oak memory server and a public binary ledger, but Google has not announced broad availability, and a 2026 Trail of Bits review left two findings unresolved.

Google DeepMind - Advancing Private AI Compute with secure, server-side memory · Google - Private AI Compute technical brief, September 2026