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Re:What is AT&T doing at 1111340002? by lxgr on Sunday November 07, 2021 @05:27AM (#29138108)
Maybe, but you'd be surprised what kinds of SIM application toolkit based products there are in the world. These are actually running on the SIM, with your phone only proxying input/output!

For example in many African countries, you have M-Pesa [1], which was at least initially entirely based on SAT.

[1] https://en.wikipedia.org/wiki/M-Pesa

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