In this video, Jeevana demonstrates how to grant users access to an S3 bucket encrypted with a custom AWS KMS key. She explains the process of configuring bucket policies and IAM permissions to allow authorized users to interact with the encrypted bucket while maintaining security. The video covers key steps including creating a bucket policy, setting up IAM roles, and testing access to ensure proper functionality. This guide is useful for AWS administrators looking to implement secure, encrypted S3 storage while still allowing necessary user access.