google has released an update to its android software allowing owners to unlock their phone with their voice .
` we 've heard from multiple users that the fully formed feature is rolling out , ' said android police .
` tapping the option under smart lock will take users to the google app 's settings .
` a warning advises that trusted voice unlocking is less secure than other options , but just a couple taps and you 'll be able to unlock and execute commands on your secured device by simply uttering ` ok google that