Securing S3 Data Access
Configure access control for S3 buckets and objects using bucket policies, ACLs, and pre-signed URLs.
S3 Security: Why It Matters
Amazon S3 is a highly durable and available storage service, but securing your data is paramount. Misconfigured S3 buckets can expose sensitive information to the public internet.
In this lesson, we'll explore key mechanisms AWS provides to control who can access your S3 data.
Access Control Basics in S3
S3 uses several layers to manage access:
- Bucket Policies: JSON-based policies applied to a bucket.
- Access Control Lists (ACLs): Legacy, finer-grained permissions on buckets and objects.
- Pre-signed URLs: Temporary, time-limited access to specific objects.
Understanding these helps you implement the principle of least privilege.