Microsoft is planning to update Windows Phone to include anti-theft features that will prevent thieves from using devices after they’re stolen. The software maker signed on the CTIA’s Smartphone Anti-Theft Voluntary Commitment in April, and plans to release a software update to the Find My Phone feature of Windows Phone 8.1 ahead of the CTIA’s goal of July 2015. New features will include the ability to wipe and lock devices from being used without logging into a Microsoft account, known widely as an activation lock.