02 - EBS Snapshot Encrypted

Ensure EBS Snapshots are Encrypted at Rest

Elastic Block Store (EBS) snapshots are direct images of a point in time of your volumes that are directly connected to your compute instances. Sensitive data may be housed on your EBS snapshots and this is why it is a security best practice to ensure your data is encrypted at rest. This will also help you with NIST, HIPPA, GDPR & PCI-DSS compliance.

Audit & Remediation

Login into your AWS account
Navigate to the EC2 service at: https://console.aws.amazon.com/ec2
On the EC2 Dashboard in the main panel, Under Resources select the Snapshots link.

In the main panel you have a list of all your snapshots. Under the Encryption column you see the current status. If listed as Not Encrypted you are not enforcing encryption.
Select the Snapshot that is currently not encrypted.

At the top left corner of the page, select Actions then choose Copy.

Under Copy Snapshot Select Encrypt this snapshot next to Encryption.
Press teh Copy button.

You can now safely delete the Snapshot that you made the copy from.
Select the Instance that you have noted from previous steps.
Set the Device to use the same name that it was set to previously.
Repeat steps for each volume that you have listed as Not Encrypted.
Repeat steps for each Region that you have volumes in.
Repeat steps for each AWS account that you have.

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