How can you secure data stored in S3?

Using bucket policies, IAM policies, and server-side encryption is an effective strategy for securing data stored in Amazon S3.

Bucket policies and IAM (Identity and Access Management) policies work together to control access to your S3 buckets and the objects within them. Bucket policies are attached directly to the S3 bucket and define specific permissions for the bucket at a granular level, specifying who can access the data and what actions they can perform. On the other hand, IAM policies provide permissions at the user or group level, ensuring that only authorized users or roles can perform operations on the S3 resources.

Server-side encryption is a key method to protect the data at rest. By enabling server-side encryption, the data stored in S3 is automatically encrypted using AWS managed keys or customer-provided keys. This ensures that the data is unreadable to anyone who does not possess the corresponding decryption keys.

In contrast, other options do not effectively secure data. Storing data in plain text leaves it vulnerable to unauthorized access, and limiting access to AWS Support does not protect the data from users or roles within the account. On the flip side, enabling public access to all S3 resources is fundamentally contrary to data security, as it exposes the data to anyone on the