Windows Phone is designed with security in mind for both users and organizations. The result is a feature-rich and flexible Smartphone that uses a holistic approach to security design.

Organizations want Smartphone that protect data when it is stored and when it is communicated. Windows Phone 8 uses a defense-in-depth, multi-layered approach that addresses organizational security
requirements in numerous ways. Because Windows Phone 8 uses the same NT Kernel as Windows 8 and Windows Server 2012, it shares the same driver model, developer platform, security and networking stack, and graphics and media platform with the desktop operating systems. The result is a smartphone that has security features that are unique in today’s marketplace.

For more details please check out the whitepaper