OK, used to be you had to somehow physically get into an enterprise in order to install a hidden modem and then hack the system.
Now you just build a little computer, probably costing less than $100, with connection capabilities to both cellular data and wifi, and ship it to your target.
(From the wording in the article, I think this is just a research project ... for now ...)
![screenshot-2019-08-06-at-12-20-49 screenshot-2019-08-06-at-12-20-49](https://community.isc2.org/t5/image/serverpage/image-id/3421iF0083559A5A6094B/image-size/large?v=v2&px=999)
............
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