Sort:  

It was independently developed by a third party developer. I believe Cypherglass offered 100k bounty for hardware wallet support for EOS. 50k for Ledger, 50k for Trezor.

Coin Marketplace

STEEM 0.06
TRX 0.32
JST 0.059
BTC 67458.06
ETH 2055.63
USDT 1.00
SBD 0.50