I&#x27;m under the impression that Android devices have had optional full disk encryption[0] for a long time, and that encryption isn&#x27;t dependent upon cloud synchronization.<p>[0] <a href="https:&#x2F;&#x2F;source.android.com&#x2F;security&#x2F;encryption&#x2F;" rel="nofollow">https:&#x2F;&#x2F;source.android.com&#x2F;security&#x2F;encryption&#x2F;</a>