A cloud computing present a pioneering means to balance the present spending and deliverance representation and provides scalable and regularly virtualized assets as a service. Users can dread of losing control of their own data and can become a considerable obstacle to the wide acceptance of cloud services. Accountability mechanisms are introduced to address confidentiality concern of end client and subsequently build up a confidentiality manager. System of cloud information accountability was introduced to carry out automatic logging and dispersed auditing of significant access performed by any individual, achieved at any time at any provider of cloud service. To defend against attacks carry out on offline java achieves, the cloud information accountability comprise a log harmonizer containing two main tasks: to deal copies of java achieves and to get well corrupted logs.