International Journal on Recent and Innovation Trends in Computing and Communication ISSN: 2321-8169 Volume: 5 Issue: 6 26 – 30 _______________________________________________________________________________________________ 26 IJRITCC | June 2017, Available @ http://www.ijritcc.org _______________________________________________________________________________________ Security & Privacy Issues of Big Data in IOT based Healthcare System using Cloud Computing Md. Zahid Ibna Alam Computer Engineering Department Sankalchand Patel College Of Engineering Visnagar,Gujarat,India e-mail: riderzahid@yahoo.com Prof. Hiral M. Patel Computer Engineering Department Sankalchand Patel College Of Engineering Visnagar,Gujarat,India e-mail:hmpatel.ce@spcevng.ac.in Abstract—The increasing popularity of IOT based technology in healthcare arena using cloud computing immensely emphasizes on using big data as a service for facilitating a proper structure for collected healthcare data and accommodating such ample number of diverse data for better diagnosis, medication and prediction of human health. The recent revolution brought in healthcare by internet of things allows us to experience the gigantic figure of data with more complexity, diversity and timeliness. Hence, the question rises in the researcher‟s den about the security and privacy of such enormous data. Therefore, nowadays the limelight has been shifted questioning on how much secure and private those data which are generated from IOT devices and being stored in cloud environment? In this paper we have drafted a survey on most probable security as well as privacy problems related to healthcare which needs to grab the attention for enabling the healthcare system more reliable, more effective in terms of advancement of medical science and curing more patients at a time predicting the possible diseases. Keywords- internet of things; healthcare; big data security analytics; security and privacy issues; cloud computing __________________________________________________*****_________________________________________________ I. INTRODUCTION The thought of internet of things (IOT) provides facility for remotely getting connected through the network architecture for anyone from anyplace at anytime. The IOT is the future revolution maker by establishing the wireless communication between technologies to make it easygoing and smarter for consumers. Benefits of IOT normally embody the association of compatible gadgets, system in addition to services that goes from far away machine-to-machine (M2M) scenarios [1].The idea of object hyperlink used by IOT allows people to dwell in a smart and highly networked world for a wide range of interaction [2].Therefore IOT has great opportunities by applying the automation in smart cities, logistics, industrial control and health care. Medical care and health diagnosis can be a proper place to implement IOT and bring a new epoch of health care system. IOT has many applications related to healthcare like remote health monitoring, fitness programs, persistence diseases as well as elderly care and apart from that consent with treatment; remedy at home is moreover another significant latent application [3]. “Big Data” is related to the jumbled collection of huge and complicated data sets, which surpasses available computational methods or systems. In healthcare, there are various factors which can deal with big data definition. IOT based healthcare system has ample number of data starting from the patient information following to the various parameters of diseases to diagnose properly. Big data can be helpful for analysing such number of data for prediction and medication purpose towards the welfare of patients. It also helps to be aware of the people health for disease control and prognostic examination. Gartner calculate approximately 26 billion IOT related apparatus will be handy near by 2020 and the quantity of jam created through these devices will be bulky adequate to lay it in the type of big data [4].Above all, these kind of goals can be achieved only if security and privacy of data can be ensured from any illegal hand for getting the result more accurately. The person can produces more information with more critical values. Millions of data that could be used in advertising or in social networks, however in the IOT based healthcare system the potentials presented by these data are not employed so far [5].The existing database models related to such as relational data are not enough to accommodate such a large data that‟s why “big data” can be utilized as a service in the field of IOT based healthcare system under cloud computing environment. The huge data reside in the cloud which are created from a range of sources may entail bigger amount of processing power to get back information in a protected and consistent way [2].Usage of RFID cards, sensors, detectors and other intelligent apparatus can get plentiful benefits to IOT by gathering large number of data from different sources. Implementation of big data idea into healthcare considerably augments security and privacy concerns of patient‟s information as they are stocked up in data centers with changing stages of safety measures. Furthermore, most of the healthcare data centers have Health Insurance Portability and Accountability Act certification which also known as HIPAA certification, but it doesn‟t promise patient record protection because HIPAA is mostly concentrate on making sure security policies along with procedures than on putting into practice them[6].So, on that note this paper will be concerning about following points:  Discussion about IOT healthcare network, services and application  How „big data‟ can be used as a service in IOT based healthcare system under cloud computing environment.  It also discusses the advantages of usage of big data architecture in IOT based healthcare system.