Ensure Backup Vault is encrypted at rest using KMS CMK

Error: Backup Vault is not encrypted at rest using KMS CMK

Bridgecrew Policy ID: BC_AWS_GENERAL_89
Checkov Check ID: CKV_AWS_166
Severity: MEDIUM

Backup Vault is not encrypted at rest using KMS CMK


Encrypting your data and resources with KMS helps protect your data from unauthorized access or tampering. By encrypting your data, you can ensure that only authorized users can access and decrypt the data, and that the data is protected while in storage or in transit. Such action can help protect against external threats such as hackers or malware, as well as internal threats such as accidental or unauthorized access.

Fix - Buildtime


  • Resource: aws_backup_vault
  • Argument: kms_key_arn
resource "aws_backup_vault" "backup_with_kms_key" {
  + kms_key_arn = aws_kms_key.example.arn


  • Resource: AWS::Backup::BackupVault
  • Argument: Properties.EncryptionKeyArn
Type: AWS::Backup::BackupVault
+     EncryptionKeyArn: example.arn/aws_kms_key