Big data emerging issues: Hadoop security and privacy

With the growing development of data, it has become increasingly vulnerable and exposed to malicious attacks. These attacks can damage the essential properties such as confidentiality, integrity and availability of information systems. To deal with these malicious intents, it is necessary to develop effective protection mechanisms. In this paper we will indicate the main risks arising in Big Data and existing security mechanisms, we focus on Hadoop security and its components because it remains the required Framework for the management and the processing of big data.