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Cloud load balancer snafu leads to 3D printer user printing on a stranger's kit


Using the IP address for authentication and authorization like that seems like a slightly hazardous plan to me. Ignoring the idea of deliberately spoofing IP addresses, there's the fact that CGNAT is deployed in the wild. This means we already see public IP addresses shared between different people as a matter of course. We should expect the use of CGNAT will be expanding every year in the future as IPv4 address space gets more expensive.

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