Internet-of-Things (IoT) has made ubiquitous computing a reality through extending Internet connectivity in numerous applications deployed throughout the globe. The combination of IoT-based cloud structures included with smart systems that offer smart objectives and programs are a promising future trend. Cloud computing is tremendously efficient, storage is becoming more and more vast, and a few groups are now changing their data from in house data to Cloud Computing Vendors' hubs. As a result, a few new classes of safety and privacy problems are introduced. This paper provides security problems relating to the IoT cloud.