You can now sign in with your email address! Buy, sell and margin trade Bitcoin (BTC) and Ethereum (ETH) in exchange with EUR, USD, CAD, GBP, and JPY. Leveraged trading on US based Bitcoin and Ethereum exchange. At Kraken Login, we consider sign-in 2FA a basic security feature that all account holders should utilize for both their Kraken account and email account! Additionally, enabling sign-in 2FA activates Step-up 2FA on your account. Step-up 2FA is an extra step that is required anytime you want to add, edit or remove any 2FA settings on your account.