Security and privacy in the Internet of things : architectures techniques and applications The Internet of Things (IoT) is an emerging paradigm due to extensive developments in information and communication technology (ICT). The purpose of IoT is to expand the functions of the first version of the Internet by increasing the ability to connect numerous objects. The wide facilities offered by IoT and other sensing facilities have led to a huge amount of data generated from versatile domains thus information security has become inevitable requirement not only for personal safety but also for assuring the sustainability of the IoT paradigm itself