This SpringerBrief analyzes the potential privacy threats in wireless
and mobile network environments, and reviews some existing works. It
proposes multiple privacy preserving techniques against several types of
privacy threats that are targeting users in a mobile network
environment. Depending on the network architecture, different approaches
can be adopted. The first proposed approach considers a three-party
system architecture where there is a trusted central authority that can
be used to protect users' privacy. The second approach considers a
totally distributed environment where users perform privacy protection
by themselves. Finally, more general system architecture is discussed
including how a semi-trusted server may exist, but users need to
collaborate to achieve maximized privacy protection. This brief is
designed for researchers and professionals working with privacy
preservation, mobile networks, and threat models. The variety of
approaches presented makes it useful for students as well.