Believe me, when you sign into yr google acct and go into this app, if you choose the 'Lock' option, you are forced to create a password and you then have the choice to insert a message and recovery #. then you click 'Lock' there is no unlock option in this app to activate remotely. Another glitch in the app is that I activated the Lock on a Friday night, found the phone next day without using the app because the app sent us to a house across town, wrong location - it was in my driveway. The app wasn't on the phone and I used the phone without ever seeing the lock password activated. if someone else found it, they could have used the phone. The Lock feature didn't kick in until the following Wed. Just from this alone, there are serious problems with this app. Go to google forum with this topic and there are hundreds of us with the same problem of inputting our created passwd without gaining access. Frustrating - one app user wants to sue Google - good luck with doing that!