In today's interconnected world, where most devices are connected to the
internet and constantly sharing data, the increasing number of IoT devices presents
challenges for large companies to develop secure IoT systems.. With the progression of
interconnected systems, the risk of hampering security is also a big concern. In the
current scenario, it is very easy for attackers to initiate any kind of security breach. The
attack will be either on its software, firmware, or hardware level. This chapter deals
with the hardware security of the IoT system, which is also termed physical security.
Various security threats related to the physical security of an IoT device are described.
Various consequences have been mentioned that can occur due to these attacks. With
these physical attacks, a lot of severe loopholes can be created in the current ongoing
research and development of these interconnected systems.
Keywords: Hardware security, Internet of things (IoT), IoT attacks, Invasive attack, Non-invasive attack, Physical security, Semi-invasive attack.