Cross-Device Trust Could Keep Android Devices Unlocked Using Another Signed-in Device [APK Teardown]

Android already offers Smart Lock options that can keep a device unlocked under trusted conditions. A new system component now points to a broader approach built around another device signed in to the same account.

We found the feature while examining Android’s framework resources from the Pixel 10 Pro Fold Android beta build cp41.260814.003.b1. The new code names the feature “Cross-Device Trust” and identifies it as a cross-device trust agent.

Cross-Device Trust gets its own Settings entry

The clearest evidence is a pair of newly added resources for the feature’s title and summary. Together, they show that Android is preparing a Settings-visible trust agent called Cross-Device Trust.

A trust agent can contribute to Android’s decision to keep a device in a trusted, unlocked state. In this case, the supplied feature details tie that trust to another signed-in device. That makes the work distinct from the existing Smart Lock trusted-device options: the focus is cross-device trust between devices associated with the same signed-in user.

The dedicated title also matters because it gives the feature a user-facing identity rather than leaving it as an unnamed internal component. Its matching summary explicitly categorizes it as a trust agent, supporting its placement in Settings alongside Android’s other device-unlock and trust controls.

We could not surface Cross-Device Trust in the app yet. The dormant strings establish the feature’s name, its trust-agent role, and the intended cross-device unlocking concept, but they do not reveal its complete setup flow or any requirements beyond the involvement of another signed-in device.

Cross-Device Trust is not available to users yet, and we will watch future Android builds for signs of its rollout.