Abstract-The desideratum of safe sizably voluminous data storage accommodation is extra attractive than yet to date. The rudimental obligation of the accommodation is to assurance the privacy of the data. In today's, sensitive data conspicuously needs to be kept private, data owners are often incentivized, or coerced, to allocate sensitive information ever more digital world, there is often a worry between bulwark privacy and sharing information. Immensely colossal data is a word utilized for prodigiously and sizably voluminous data sets that have more diverse and composite structure. These characteristics customarily correlate with extra difficulties in storing, analyzing and applying more events or extracting results. This paper fixates on confidentiality and security concerns in immensely colossal data, distinguish between privacy and security and privacy requisites in sizably voluminous data. This paper submits privacy and security aspects of cloud storage in immensely colossal data. Comparative study between sundry recent techniques of astronomically immense data privacy is withal done as well.