Yep you can do the same operations with a RTLSDR (20-40$) and a signal repeater (20ish) and raspberry pi/netbook. It’s somewhat harder to do if you don’t know the software but it really just exposes very insecure hardware. Companies should put a semblance of security and it would take care of things. These kind of devices are everywhere not just the flipper. Flipper just made it a tiny bit more friendly.