# Identity and Access Management GreenNode is responsible for safeguarding the fundamental infrastructure of GreenNode services, such as data centers and virtualization platforms. GreenNode also provides you with services that you can use securely. Among them, access control authorization is one of our top priorities. Access control authorization is a crucial security factor that determines the entities and conditions for accessing specific data, applications, and resources. Access control policies primarily rely on techniques such as authentication and authorization, allowing organizations to clearly verify that users are not being impersonated and are granted appropriate access levels based on user information, roles, and various other factors. The goal of access control is to prevent sensitive information from falling into the hands of malicious actors. Attacks on confidential data can have serious consequences, including intellectual property leakage, exposing the personal information of customers and employees, and even financial losses for the company. Therefore, access control is an integral component of our top-notch security strategy. The list below outlines the best features and tools that we provide for organizations looking to minimize security risks related to unauthorized access to organizational data, especially data stored in the cloud. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.vngcloud.vn/vng-cloud-document/vstorage/object-storage/vstorage-hcm03/identity-and-access-management.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.