Account & security
Setting up two-factor authentication
How to add a TOTP app, hardware key, or SMS fallback to your account.
3 min read· Updated Jun 7, 2026
Two-factor authentication (2FA) is the second line of defence on your account — required, by us, for every withdrawal. The strongest option is a passkey; the next-best is a hardware key (YubiKey, Titan); the third option is a TOTP authenticator app.
Set up a TOTP app
- 1Open Account → Security → Two-factor authentication.
- 2Choose “Authenticator app”.
- 3Scan the QR code in Google Authenticator, Authy, 1Password, or your password manager.
- 4Enter the 6-digit code the app generates.
- 5Download the recovery codes — print them or save them offline. These are the only way back in if you lose your phone.
Set up a hardware key
- 1Same path: Account → Security → Two-factor authentication.
- 2Choose “Hardware security key” and tap your YubiKey (or equivalent) when prompted.
- 3Name it (you can register up to four).
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