I'll reply here to the three comments: I admit that you're right guys. I have to concede my point about backdoors. If you modify user's view of Coinbase DOM the

I'll reply here to the three comments: I admit that you're right guys. I have to concede my point about backdoors. If you modify user's view of Coinbase DOM then no security in the Ledger/Trezor is going to help with that. But also it's independent of the discussion around whether NFC or Bluetooth is a better choice for host <-> device comms. PS. I love the term "violent agreement".