2014 would be prior to most of the features mentioned in this article (parts pairing) and not the subject of your article (kill switches). The article does tell

2014 would be prior to most of the features mentioned in this article (parts pairing) and not the subject of your article (kill switches). The article does tell us that: * iPhones are very commonly stolen * Android devices introduced a similar kill switch in 2014 > Samsung introduced to kill switch for its Galaxy S5 in April, so it will be sometime until its effects can be evaluated