Microsoft is working on new anti-theft features for Windows Phone to be added in a future update



From WPCentral:

Much like Apple's activation lock, which was added to iOS 7 late last year, the new update to the Find My Phone would require users to login with a Microsoft account before dong things like reactivating a device. Microsoft signed CTIA's Smartphone Anti-Theft Voluntary Commitment in April and is required to add these features by 2015, so it's a good sign that they're already in the works.

  Microsoft planning better anti-theft features for Windows Phone