Internet of Things (IOT), Big Data, Wearable Devices and social media

Internet of Things (IOT), Big Data, Wearable Devices and social media are all have changed our lives and will impact the future of how we conduct businesses. In this essay you should fully understand these technology and their benefits. No technical understanding is needed here, rather,  gain a knowledge about the benefits and the applications of these technologies. 
 The essay (report) should be no less than 1000 words and should be aligned to the guidelines referenced below. You are requested to provide examples about these technologies and discuss their benefits, disadvantages and its impact on organization performance. You are requested to follow the two guidelines below.
 

Introduction
The possible negative impact of these technologies on health, privacy and security *

*  cover other negative impacts on other domains.
*  provide real case examples in engineering management.