BANs in healthcare are used to determine the activities of
daily living and provide data for longitudinal studies. It is then
easy to see that such BANs also pose opportunities to violate
privacy. Furthermore, the importance of securing such systems
will continue to rise as their adoption rate increases. The first
privacy challenge encountered is the vague specification of
privacy [1]. The HIPPA by the U.S. Government is one attempt
to define this term [12]. One issue is that HIPPA as well as
other laws define privacy using human language thus, creating
a semantic nightmare. Nevertheless, privacy specification
languages have been developed to specify privacy policies for
a system in a formal way. Once the privacy specifications are specified, healthcare systems must enforce this privacy and
also be able to express users’ requests for data access and the
system’s policies. These requests should be evaluated against
the predefined policies in order to decide if they should be
granted or denied. This framework gives rise to many new
research challenges, some unique to BANs, as we describe in
the paragraphs that follow [1].