Google's Private AI Compute gets encrypted server-side memory with device-derived keys.

Per-user databases encrypted with keys derived on the user's device, decrypted only inside hardware-enforced enclaves while a request runs, then re-encrypted. Google says it will publish a tamper-proof record of server software so devices can verify attestation before sending anything, and commissioned an independent audit (DeepMind). No ship date. It's Google's answer to Apple's Private Cloud Compute for cross-device assistant memory, and the software transparency log is the part that makes the claim checkable.