Do I have to give Bison Trails my private keys to run an Ethereum node? BisonSupport May 07, 2019 16:00 Updated Follow No. We will never ask you for your private keys to run an Ethereum node (or any other node). Related articles Does Bison Trails take custody of my ETH or other tokens (e.g., ERC-20 or ERC-721)? Comments 0 comments Article is closed for comments.