2.1. Issues

The existing cloud systems have the following issues:

a) Centralized data control b) Potential data security risks c) Limited usability and relatively high entry barriers d) Monopoly of infrastructure by corporations e) Limitations in infrastructure expansion due to excessive infrastructure construction costs f) Waste of idle infrastructure and unreasonable billing methods

1. Data Control Issues: In current cloud storage services, the management of user information and stored data is handled by the company, not the user. As a result, users find it difficult to have practical control over their data.

2. Security Risks: Existing cloud services are composed of centralized systems, making them vulnerable to potential security risks.

3. Usability Limitations and High Entry Barriers: For general users, initial setup and technical difficulties, as well as high costs, make it challenging to start using cloud services.

4. Monopoly of Infrastructure by Corporations: Centralized infrastructure networks tend to be monopolized by large corporations, limiting competition and hindering innovation.

5. Excessive infrastructure construction costs: High infrastructure construction costs make it difficult to expand services to new areas or introduce new services.

6. Waste of Idle Infrastructure and Unreasonable Billing: Users are often charged even if they do not use the allocated capacity, resulting in an unreasonable billing method.