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What architectural measures are effective for preventing network attacks and lateral movement when ingesting IoT data?
①Place all services in the public subnet and allow external connections.
②Control traffic solely with the NAT gateway and do not configure security groups.
③Assign a dedicated public IP to each device for data ingestion to identify communications.
④Create an ingestion subnet inside the VPC and restrict access using VPC endpoints and security groups.
⑤Network segmentation is unnecessary; leave everything to the OS-level firewall.