On some Android phones, Google allows a user to completely unlock their device by saying "Ok, Google". This feature, called Voice Match Unlock, can be fooled by a voice recording of the user. As a result, the feature was 86 on the Pixel 3 and the Pixel 3 XL. And now, server-side updates are coming that will change the features of the Voice Match Unlock option (disabled by default).
As noted 9to5Google, after the update, the newly-named Voice Match voice recognition system (the word "Update" has disappeared) no longer allows you to open a phone completely. Instead, Voice Match will allow a user to obtain "personal information" such as e-mails (including Gmail), information on flight bookings and invoices. It will also allow users to access a shopping list, contacts, Google calendar entries, memory aids, and reminders.
Users will still be able to access Google Assistant from the lock screen using their voice, even if they have not used a PIN or fingerprint to unlock their phone. . However, a lock icon at the top of the wizard window indicates that the wizard will only provide "personal information" until the handset is completely unlocked. Previously, having the wizard perform a task on your unlocked device would allow you to press the home button and access the phone.
The change will no longer allow an Android user to ask the wizard to process certain requests from their locked phone. For example, users could previously listen to certain songs from a locked handset by saying "Ok, Google, listen to music". After the update, you will need to unlock the device (again, with a PIN or fingerprint) before you can listen to music from the phone. The additional time required for this operation will be worth the increased security provided by the update.