What we hold
Email, billing identity, device public keys, region preference, account.country_code (sourced from App Store storefront → Play regionCode → Cloudflare CF-IPCountry → user-declared; XX fallback; Tor → T1). For Drive, Mail, and ticket bodies we hold ciphertext encrypted at rest: each object is encrypted under its own key, and that key is wrapped by a server-held master key. Vault items stay on your device.