ETHSecurity Community

I have a bunch of this new NFC cards BurnerOS by ArcX… it’s neat, but I wonder:
How trivial is to exfiltrate the private key? There has to be a threshold of assets secured at which it makes upgrades to a stronger solution.

As its maker, I would move to using it in a multisig above $10k in assets. More paranoid, or those who carry it everyday, might want to do less.

I had one with $5k at ETHDenver and my biggest fear was losing it in my every growing Burner pile. Label them with permanent marker!