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Previously, Apple introduced an automatic reboot feature to iPhones via iOS security updates—a security mechanism designed to help protect user data by triggering a reboot if the device remains locked for an extended period. This ensures that data remains encrypted, preventing unauthorized access or extraction through specialized forensic techniques.
Now, Google has followed suit by bringing a similar capability to Android devices. In the recently released Google Play Services version 25.14, Google notes that devices will automatically reboot after remaining locked for three consecutive days. This feature applies to Android smartphones and tablets but excludes other Android-based devices such as wearables and Android TVs.
Following Apple’s lead, Google introduces automatic reboot to Android—devices will now encrypt data by rebooting if left unlocked for over 72 hours.
Modern smartphones typically encrypt all user data by default. Upon powering on, the system remains in an encrypted state until the user unlocks the device using a PIN. Once unlocked, biometric methods such as fingerprint or facial recognition can be used for convenience. However, only the initial PIN entry decrypts the device.
If the system is rebooted, it returns to a fully encrypted state. At this point, only the PIN can decrypt the data—biometric methods are rendered inoperative. In this pre-unlock state, also known as “Before First Unlock” (BFU), data extraction via technical means becomes virtually impossible without the user’s PIN.
If a user fails to unlock the device using either a PIN or biometric authentication within 72 hours, the system deems the device inactive and will automatically reboot, reverting it to the BFU state.
For most users, this change will have minimal impact. Even after the automatic reboot, a simple PIN entry will restore full access, meaning day-to-day usability remains unaffected.
As of now, Google Play Services version 25.14 has not yet been fully rolled out, with a gradual deployment expected over the coming week. While the auto-reboot feature may take additional time to become active, it does not require a full operating system update—any device that supports Google Play Services should eventually receive the feature.
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