A data protection system selectively deletes data from an electronic device when the device is reported as lost or stolen, or when another data protection triggering event occurs. Different data files may, for example, be treated differently depending on when such files were created. For example, data files that were created while the computing device was known to be in the owner's possession may be deleted, while data files created after the electronic device left the owner's possession may be left intact (since they may have been created by an innocent user). Data files created between these two points in time may be quarantined so that they later be restored, if appropriate.