Smartphones can store highly sensitive information and must be constantly protected as noted in article. Password protection, encryption, and other best practices should be used.
QUOTE: More than one billion people nowadays use smartphones devices and this number is growing rapidly. With the growing numbers of mobile users accessing the internet on Android smartphones and tablets, and iOS iPhones and iPads, the number of mobile threats and attacks is rising progressively. Mobile users store sensitive data, and engage in online banking operations, exposing devices to the modern mobile threads. You need constant protection. Not even these big names were immune from attack: German Chancellor Angela Merkel’s smartphone was hacked; Rovio, creator of popular game Angry Birds, reported that the personal data of its customers might have been accessed by U.S. and British spy agencies; and recent news of other leaky phone apps have caused people to look for ways to protect their private mobile communications.