Two-factor authentication (2FA) adds a one-time code requirement on top of your password. It's strongly recommended for all accounts.
Enabling 2FA
Go to Settings → Profile → Security → Authentication → Manage. You'll be prompted to set up an authenticator app (Google Authenticator, 1Password, Authy, etc.).
Warning
Save your backup codes when you enable 2FA. If you lose access to your authenticator app and don't have backup codes, account recovery requires manual identity verification.
Signing in with 2FA
After entering your email and password, you'll be prompted for the 6-digit code from your authenticator app. Codes expire every 30 seconds.