Security of IoT in smart homes

Internet of Things is a growing modern trend in information and communication technologies. The number of smart IoT devices is rapidly growing by every year in all sectors and is becoming an important part of our infrastructure and daily life. With an increase in cyber attacks targeting IoT devices are also growing concerns regarding the devices’ security. The topic of this bachelor’s thesis is security of IoT in smart homes. The theoretical part of this thesis focuses on explaining the term IoT including its current state of the market, the way it works, three-tier architecture, areas of use, and advantages and disadvantages in the first chapter. The second chapter is centred around security of IoT, cyber attacks, as well as introducing the OWASP organisation and recommended options regarding the security of an IoT home of a user. The practical part’s goal is the creation of a Proof of Concept of a hardware firewall. At the beginning of the third chapter devices securing IoT homes are chosen, namely Avast Omni and Bitdefender BOX, including their functionality, other aspects and a comparison. The chapter then focuses on creating said hardware firewall while minimising costs and focusing on the Czech market. Presented are appropriate components, single core computer Raspberry Pi Zero, and OpenWrt Software. Following that is installation, configuration and testing of said firewall. At the end the solution is compared to mentioned available commercial products. Throughout this thesis methods of explanation, analysis, synthesis, comparison and experiment are used.