Delayed Lock RemoteLock Plugin (de.j4velin.delayedlock.plugins.remoteLock) on Google Play
This plugin automatically locks your device when receiving a SMS* containing a defined keyword.If you lost your phone, you can prevent others from accessing your private data by simply sending a SMS to your phone.This is just a plugin and requires the "Delayed Lock" app version 2.0.8 or newer to run!!To configure the plugin, open "Delayed Lock" and scroll down to the plugins section.* the app just looks for SMS - no MMS, no Google Voice SMS, no Whatsapp or whatsoever