How can you enhance the security of data stored on EBS volumes?

Difficulty: 6/10

EBS encryption, KMS key management, snapshot security

Securing Data at Rest and in Transit

Data protection for EBS volumes is primarily achieved through encryption and restricted access. AWS provides native integration with KMS (Key Management Service) to handle volume encryption seamlessly.

EBS Security Enhancements

1
Enable Amazon EBS encryption at rest using AWS KMS keys.
2
Ensure encryption in transit between the EC2 instance and the EBS volume.
3
Use EBS Snapshots for backups and ensure snapshots are also encrypted.
4
Implement IAM policies to restrict who can attach, detach, or delete volumes.
5
Use 'Encryption by Default' at the region level to ensure all new volumes are secured.

Scenario Questions

0-2 years experience

1You need to store sensitive logs on an EBS volume attached to an EC2 instance. How would you ensure the data is encrypted at rest?
2If you accidentally created an unencrypted EBS volume, what steps would you take to secure the data without losing it?
3What happens if you attach an unencrypted volume to an instance that already has an encrypted root volume?

Follow-up Questions

What are the common pitfalls when enabling encryption on existing volumes?
How would you verify that encryption is correctly applied in production?
Can you describe any monitoring or alerting you would put in place?