2FA (two-factor authentication)

An extra security step in addition to your password.

Explanation

2FA reduces account takeover risk. Prefer authenticator apps over SMS when possible.

Why it matters

  • Stops many password-only account takeovers.
  • Reduces damage if your password leaks.
  • Adds a strong layer against phishing in some cases.

Examples

  • Login requires a code from an authenticator app.
  • Withdrawals require a one-time code.

Common mistakes

  • Using SMS 2FA and being vulnerable to SIM-swap.
  • Not saving recovery codes.
  • Sharing 2FA codes with “support”.

Related pages

Gift cardsPayment methodsToolsWhere to buy

Related terms

Phishing

FAQ

What does “2FA (two-factor authentication)” mean?
An extra security step in addition to your password.
Where is this term used on the site?
This glossary page is the canonical definition. Use the related links below to jump into guides and hub pages where the concept is applied.
Is this financial advice?
No. These pages provide definitions and safety-oriented explanations, not investment advice.