It only took about a month that Google launched the Android Device Manager and added it will a very basic nice and effective feature “Find My Phone” which will allow people to track lost Android Devices without using any third party Application over android.
As Earlier the ADM only allowed users to find their devices or just wipe the data remotely. but now there is a new feature in existence which allows us to remotely lock the device so that no one can even use it for any reason. Today onward this feature is available. While using the web interface you can lock the device with  a new password overwriting the existing security concerns.
And bad luck you don’t have Internet enabled o your device or is in airplane mode. Then Don’t worry whenever your device connects to internet the device will be automatically locked and will ask for a lock code to access its features and data. We also told you about the Android Device Manager that its getting new features.
If you haven’t registered for the ADM then just Do it Here – Android Device Manager