Abstract:
The Internet of Things (IoT) is one of the most promising technologies that seeks to improve quality of life by providing
smart civic amenities. Several smart application domains that are envisaged include agriculture, industry, healthcare, transportation
etc. IoT nodes are provided with unique identification numbers having ability to transfer data over the network without requiring
human intervention. The ubiquitous communication among IoT devices leads to several security vulnerabilities. This paper presents
a survey of security issues, challenges and attacks at different layers of IoT architecture. Moreover, we discuss counter-measures that
can be adopted as well as possible future research directions. Security issues along with possible counter-measures are discussed in a
layer wise manner with the aim to provide researchers with a bird’s eye view of IoT security landscape.