# ec2-security-group-attached-to-eni-periodic
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Checks if non-default security groups are attached to Elastic network interfaces (ENIs). The rule is NON\$1COMPLIANT if the security group is not associated with an ENI. Security groups not owned by the calling account evaluate as NOT\$1APPLICABLE. 

**Note**  
This rule reports on the `AWS::EC2::SecurityGroup` resource type. However, in order for the rule to run effectively, you must enable the recording of the `AWS::EC2::NetworkInterface` resource type.

**Identifier:** EC2\$1SECURITY\$1GROUP\$1ATTACHED\$1TO\$1ENI\$1PERIODIC

**Resource Types:** AWS::EC2::SecurityGroup

**Trigger type:** Periodic

**AWS Region:** All supported AWS regions except Asia Pacific (New Zealand), China (Beijing), Asia Pacific (Thailand), Asia Pacific (Jakarta), Middle East (UAE), Asia Pacific (Hyderabad), Asia Pacific (Osaka), Asia Pacific (Malaysia), Asia Pacific (Melbourne), AWS GovCloud (US-East), AWS GovCloud (US-West), Mexico (Central), Israel (Tel Aviv), Asia Pacific (Taipei), Canada West (Calgary), Europe (Spain), China (Ningxia), Europe (Zurich) Region

**Parameters:**

None  

## AWS CloudFormation template
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To create AWS Config managed rules with AWS CloudFormation templates, see [Creating AWS Config Managed Rules With AWS CloudFormation Templates](aws-config-managed-rules-cloudformation-templates.md).