---
names:
  full: AWS CloudTrail Network Access Control Lists Changes Monitoring is not enabled
  contextual: Network Access Control Lists Changes Monitoring is not enabled
description: "Real-time monitoring of API calls can be achieved by directing CloudTrail\
  \ Logs to CloudWatch Logs, or an external Security information and event management\
  \ (SIEM) environment, and establishing corresponding metric filters and alarms.\
  \ NACLs are used as a stateless packet filter to control ingress and egress traffic\
  \ for subnets within a VPC. It is recommended that a metric filter and alarm be\
  \ established for changes made to NACLs."
impossible: true
type: COMPLIANCE_POLICY
categories:
  - SECURITY
frameworkMappings:
  - "/frameworks/cis-aws-v7.0.0/05/11"
  - "/frameworks/cloudaware/logging-and-monitoring/alerting-and-notification"
similarPolicies:
  internal:
    - dec-x-66cf8b15
  cloudConformity:
    - url: https://www.trendmicro.com/cloudoneconformity/knowledge-base/aws/CloudWatchLogs/network-acl-changes-alarm.html
      name: Network ACL Changes Alarm