Google Begins Rolling Out a Protected Vault for Android AI’s Personal Data

Google wants Android’s personal AI to work inside a protected vault, but the rollout starts with storage—not a fully enclosed assistant. Introduced on October 7, Android on-device AI seal, or AISeal, is a hardware-isolated architecture for personalized AI. Google says protected personal-context storage is rolling out now; model execution and autonomous agents inside the vault remain future work.

A vault separate from Android itself

The information at stake is more than a single app’s records. Google describes assistants drawing on a connected picture of emails, messages, calendar events and activity across apps. Bringing that context together can help an assistant anticipate needs and complete tasks, but it also concentrates sensitive information in one place.

Android already separates applications through sandboxing and security policies. AISeal adds a different boundary: a protected virtual machine, an isolated computing environment separated from the main operating system. It uses the Android Virtualization Framework and protected KVM, the software layer that enforces that separation.

The storage component keeps and indexes personal context in encrypted local storage. Google currently uses AppSearch as its reference database implementation, but the architecture supports other databases, including proprietary stores from device manufacturers. AISeal therefore does not require every manufacturer to adopt the same database.

The assistant is still on the roadmap

Google’s design allows several services to share one protected vault while maintaining internal separation. That arrangement is intended to reduce memory and battery demands. Access controls would let a database, a model and an assistant work together without exposing the underlying raw data.

Its illustrative example is a schedule summary: an assistant queries the database and runs a model entirely inside the vault. Outbound controls are designed to let only the intended final answer return to Android. This describes the planned workflow, not a confirmed shipping assistant capability.

Three planned extensions

• In-vault processing: move model execution and autonomous agents into the protected environment so sensitive context never touches the main operating system’s memory.
• Direct accelerator access: give the vault a private connection to the phone’s neural processing unit, the chip component used for AI workloads.
• Confidential cloud processing: connect the protected phone environment to manufacturers’ confidential cloud servers through end-to-end encrypted hybrid inference.

Chip support, without a device calendar

Google says MediaTek has announced AISeal support on its Dimensity 9600 Pro, and Qualcomm’s Snapdragon chipsets will support the architecture through Android Virtualization Framework. It is also working with device manufacturers. The rollout announcement does not identify eligible phones or give a device-by-device timetable.