Amazon S3 Access Points: Simplifying Bucket Security and Access Control

Amazon S3 Access Points allow organizations to manage access to S3 at scale by creating customized access policies for different users, applications, or teams. Instead of managing complex S3 bucket policies, you can define separate access points with individual policies that control access to specific prefixes (folders) within a bucket.

1. Why Use S3 Access Points?

Managing access to an S3 bucket with a single bucket policy can become complicated as:

• More users and teams require access.
• Different data categories (e.g., finance, sales, analytics) need different permissions.
• The bucket policy grows too large, making it hard to maintain.

Solution: Use S3 Access Points

• Each access point has its own unique policy.
• Users and applications connect through access point-specific DNS names.
• Simplifies security management while ensuring least privilege access.

2. How S3 Access Points Work

Example Scenario

An S3 bucket contains finance data and sales data.

We create three access points:

How Policies Are Applied

1. Each access point has a policy, similar to an S3 bucket policy.