2a9d74f2_lnerabilities_in_Cloud_Storage__Criteria
[Google Docs] All the versions of the files are maintained and even the file difference can be viewed only for file extensions like documents. [ADrive] Multiple file version support is available but retrieval is not available for basic edition. [Zumo Drive] Multiple file versions can be maintained and retrieved. [Criteria] 
Multiple File Versions
Narensportal: Exploitation of Vulnerabilities in Cloud Storage
Criteria