Two-factor authentication (2FA) — protect your account from theft

2FA — on top of a password, you need a second factor. Supported by most services.

Methods

• SMS code
• Authenticator app (Google Authenticator, Authy)
• Hardware key (YubiKey)
• Biometric

Best choice

Authenticator app — safer than SMS (resists SIM swap).

Where to enable

• Hosting account
• Domain registrar
• Email
• Payment services

Backup code

After enabling 2FA, write down the backup code on paper — needed if you lose your phone.