Can old phones be used as a #seedsigner If kept in airplane mode? WiFi off and all?
Or those are still risky even then?
Can old phones be used as a #seedsigner If kept in airplane mode? WiFi off and all?
Or those are still risky even then?
The baseband chips are all proprietary software so you can't be 100% sure if they broadcast something somewhere. Could work though as a member of a multisig set.