In this paper, the authors study and idea of cloud computing establishment and security issues. Distributed computing is considered as one of the developing stadiums of software engineering as of late. It is giving phenomenal offices to business ambitious people by adaptable foundation. In spite of the fact that, distributed computing is encouraging the information technology industry, the innovative work in this stadium is yet to be accepted. Their commitment in this paper is a progressed study concentrating on distributed computing idea and most security issues.