Question

How to protect data in the cloud from accidental or malicious deletion?

Context

Some types of data, as required by law, need to be retained and stored for a specific period of time for the purpose of investigation or research. For example, data generated by public visual camera need to be stored sometime for investigation purpose. In the cloud context, data is separated logically, but not physically. If malicious user is able to get hand on data and intentionally destroy it, the application or cloud platform provider is reliable to this. The data recovery plan designed for such event should be in place to address this data loss challenge.

Solution

The solution is to design a system in such a way so that the representation of digital data remains even after attempts have been made to remove or erase it. This makes possible by using data replication/redundancy in the physically distributed cloud system.