Smartphones, personal digital assistants (PDAs), and other mobile devices that employ a variety of data communication and storage technologies, such as e-maillPIM synchronization software, infrared data transmission, and removable data storage, are at risk for increasing security threats to corporate data. This book details how mobile devices can become a backdoor to the enterprise. It specifies immediate actions that can be taken by an IT security manager to defend against these threats and the regulatory and compliance issues relevant to a comprehensive handheld security policy.