  The growth in the use of small sensor devices, commonly known as the Internet
of Things (IoT), has resulted in unprecedented amounts of data being generated
and captured. With the rapidly growing popularity of personal IoT devices, the
collection of personal data through such devices has also increased
exponentially. To accommodate the anticipated growth in connected devices,
researchers are now investigating futuristic network technologies that are
capable of processing large volumes of information at much faster speeds.
However, the introduction of innovative network technologies coupled with
existing vulnerabilities of personal IoT devices and insufficient device
security standards is resulting in new challenges for the security of data
collected on these devices. While existing research has focused on the
technical aspects of security vulnerabilities and solutions in either network
or IoT technologies separately, this paper thoroughly investigates common
aspects impacting IoT security on existing and futuristic networks, including
human-centric issues and the mechanisms that can lead to loss of
confidentiality. By undertaking a comprehensive literature review of existing
research, this article has identified five key areas that impact IoT security
for futuristic next generation networks. Furthermore, by extensively analysing
each area, the article reports on conclusive findings and future research
opportunities for IoT privacy and security for the next generation of network
technologies.
