When your Android device is lost or stolen, you may want to locate it, or at least lock it or delete its contents. All of this can be done, if you have set it up for these operations.
You should do this for all your Android (or CyanogenMod) devices. This is a must!
Open the Google Settings app, go to Android Device Manager and enable both the options there: Remotely locate this device and Allow remote lock and factory reset.
Login to the Android Device Manager website and make sure your device is displayed.
Login to the Android Device Manager website.
Your device should be visible here, with its last known location shown on the map. If you have more than one device, click the dropdown beside the name of the displayed device to choose the others.
Do what is needed: ring it, lock it or erase it.
Tried with: Android 4.4.2 and Moto G