Fine-Grained Access Control

As the digital revolution has transcended all that was before, we’ve realized that handling our data stores is one of the most critical tasks we have as an organization. Data has never been more important or more sensitive for businesses of all kinds. Every employee who can access the internal data and take action represents a potential risk if we don’t have the right policies.

As such, a lot of work has gone into creating complex access control systems that try to maintain order and mitigate some of the risks associated with data breaches, corruption, and more. In this article, we will discuss the latest development in the field of fine-grained access control. We’ll look at why it matters, how to use it, and why your organization needs to get on top of things today.

In this article, we will discuss:

• What is Fine-Grained Access Control?
• Why is Fine-Grained Access Control Important?
• Common Use Cases
• Building a Successful Fine-Grained Access Control Plan
• Examples of Fine-Grained Access Control
• Implementing Fine-Grained Access Control with Satori
• Conclusion

What is Fine-Grained Access Control?

To understand the concept, let’s break down the term into two parts:

• Access Control: This refers to policies and procedures that a company puts in place to control which people have access to specific data. A stakeholder usually has to log in or provide some other form of credentials to view, edit, or use the data. Such authentication allows the company to manage cybersecurity risk and maintain order within their systems without hamstringing those who need the data to perform their jobs.
• Fine-Grained: This term contrasts with ‘coarse-grained’ access control and refers to the level of precision and specificity applied to access control protocols. Fine-grained is much more selective about who can access specific data, giving you a very flexible and focused way of controlling read and edit rights.

Access control should be as simplified and automated as possible. Fine-grained access control allows organizations to control which users, groups, or roles have access to specific parts of data, such as columns or rows of data. The granular control helps maintain the confidentiality, sensitivity, and usage of specific data without hamstringing those users who need that access to complete their work. By automating and simplifying the policies and fine-tuning them appropriately, the organization can focus resources on creating business value.

Why is Fine-Grained Access Control Important?

As data has become more valuable and a crucial part of any modern business, the ability to implement fine-grained access control has also become incredibly important. Here are some of the reasons why it is such a critical component:

• Confidentiality: If you are storing sensitive data, such as personal data about your customers, there are a range of regulations and compliance requirements that you must follow to protect it. Fine-grained access control provides you with the tools you need to abide by the relevant regulation and ensure that any personal information is treated with the utmost confidentiality.
• Centralized Data Storage: Data-driven businesses understand that there are benefits from storing data in a centralized data store, such as a data warehouse or a data lake. Fine-grained access control allows you to accomplish this without exposing the internal data to everyone in your organization.
• Precision: Using a fine-grained access control mechanism gives you much more accuracy regarding who can access your internal data. As a result, if you have specific data pieces that require special treatment, you can implement them quickly and efficiently.
• Improved Security: Implementing a fine-grained access control scheme gives you a much better chance of reducing security risks, as well as compliance risks. When your access control is granular yet clear, you can mitigate or lower security risks such as data exposure.
• Efficient Authorizations for Non-Employees: Fine-grained access control helps limit the scope of data shared with third parties, reducing risks. The access can also be revoked when it is no longer required.

Common Use Cases

Your company has all its data stored in one cloud data warehouse, but you can’t grant access to an entire segment based purely on a role.

A fine-grained access control system allows you to control exactly who can see what data and under what conditions without losing any of the benefits of cloud storage.

Your users are working remotely or from multiple locations, and you want to limit access according to context and not just user profiles.

Fine-grained access control measures can add extra flexibility to your policies, allowing you to grant and revoke access according to contextual information like location, time of day, and more.

You want to control who can access data – read it, edit it, move it, or delete it.

Fine-grained access control allows you to go as granular as you would like regarding who can perform specific actions surrounding data, helping to mitigate some of the risks of open databases.

Building a Successful Fine-Grained Access Control Plan

When creating a fine-grained access control plan, consider these principles:

• Deep understanding of your data: Ensure that you have a nuanced understanding of your company data, including where sensitive data is, applicable regulations, and data consumers.
• Clear definitions of employee roles and what they need the data for: Clarify how your users use data to avoid impeding company progress with your access control plan.
• Differentiate between use cases: Make clear distinctions between different processes and use-cases that play a role in the access control paradigm.
• Use the right technology: Choose where to place access restrictions according to your current and future needs.
• Regular Evaluations: Regularly evaluate your access control policies to adapt to the changing needs of your organization.

Examples of Fine-Grained Access Control

• Row-level security: Limit access to specific rows in a table based on user permissions.
• Dynamic Masking: Users see redacted or hashed data according to their permissions.
• Limiting access through specific data clients: Restrict data analysts to using certain tools only.

Implementing Fine-Grained Access Control with Satori

Satori provides a way to apply fine-grained access control, controlled by data engineers, security teams, and data owners.

Conclusion

Implementing fine-grained access control is essential for risk reduction.