I wonder why use a screen/QR code to send back the signed transaction. What coul...

lowracle on Aug 3, 2017 | parent | context | favorite | on: Firefly – An open-source $5 DIY hardware wallet

I wonder why use a screen/QR code to send back the signed transaction. What could an attacker do with a signed transaction you wouldn't want him to do ? It would be more user friendly to send back the transaction to the phone using the customs BLE packets