These are the most popular cryptocurrency hardware wallets: 1 Ledger Nano S 2 Trezor 3 Keepkey A hardware wallet is the most secure way to store your cryptocurrency. #cryptocurrency #bitcoin #ethereum

(View this answer on Musing.io)Anything that's connected to the internet has a risk to be hacked. When you are not connected to the internet there is no risk to be hacked. That's why cold wallets will