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It’s surprisingly common for SIMs in IoT devices to not be locked down. If the data usage spikes enough above the noise it’ll probably be detected & deactivated.

Here’s an example from a few years ago: https://scootertalk.org/forum/viewtopic.php?t=1370

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Nice. Thought this was going to be https://news.ycombinator.com/item?id=22085089

I'm reminded of a sim card installed in tracker for wildlife, that was then used by someone for their cellphone.

I've experience working on a team for one GPS fleet management solution. Our SIMs were usually provided in a bulk PO from a top tier wireless provider and were all locked down to a certain very small (on the order of 5mb/mo) bandwidth plan. This cuts cost and risk.

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