I don't work for Medtronic. But it's extremely unlikely that will happen. It's not merely a matter of reverse engineering -- after the original medtronic "hack" / reverse engineer efforts (the ones that lead to the original openAPS system being developed) the FDA put out new guidance on cybersecurity protections for insulin pumps.

The communication between your phone/pump or glucose sensor/pump is encrypted now for all newer devices.

> Diabetic companies like Insulet have been very lax when it’s come to the hacking of their devices

Absolutely not true, not any more.