Message from Facebook: this could be war

原文：Message form Facebook: this could be war http://espresso.economist.com/b10a2a12bd626d144ac39e21c894fd4f?fsrc=scn%2Fesp%2FFB

Smartphones become the main tech product in the world. More and more people rely on their smartphone to organize their daily life. In addition, with the development of the Internet, people can easily keep in touch with their  friends. The entrepreneurs take advantage of free communication apps as well. As a result, more and more information is passed on through apps. Since apps become the common communication method, apps developers have to spend more time and effort on data protection; otherwise, communication apps would turn out to be the weakness of information protection.