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Authenticator App

A mobile app that generates one-time security codes (2FA) for your crypto accounts.

An Authenticator App is a mobile security tool that generates time-based one-time codes (2FA) every 30 seconds.
You use it to log in safely to your crypto exchange or wallet — even if someone knows your password.

Popular apps include Google Authenticator, Authy, and Microsoft Authenticator.

Why it matters

  • Protects your accounts from password leaks or phishing.
  • Works offline — codes are stored on your phone, not sent over SMS.
  • Much safer than SMS-based 2FA, which can be hijacked with SIM-swap attacks.

How to use it safely

  1. Set up 2FA on every exchange, wallet, or crypto service you use.
  2. Save the backup key when you first set up the app — if you lose your phone, you’ll need it to recover access.
  3. Never share your 6-digit codes — they change every few seconds for a reason.

💡 Lanzo Tip

Use an authenticator app, not SMS, for all your logins.
Hackers can steal phone numbers — but not your local 2FA codes.