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Medium MSK · regional

MSK clusters should disable unauthenticated access

Confirms that unauthenticated access is disabled for Amazon MSK clusters.

service: MSK
severity: Medium
scope: evaluated in every region

How to fix it

Disable unauthenticated access and enable proper authentication mechanisms.

Navigate to the Amazon MSK console
Select the MSK cluster
Go to 'Security' settings
Disable 'Unauthenticated access'
Enable authentication (IAM, SASL/SCRAM, or mTLS)
Apply the changes

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