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What is Two-Factor Authentication (2FA)?

Two-Factor Authentication (2FA) — TAP-ONE Glossary

A login security step requiring a second verification method beyond just a password.

Last updated: 8 August 2026

Two-factor authentication (2FA) requires a second piece of verification — typically a one-time code sent by SMS or generated by an app — in addition to a password when logging into accounts like a Google Business Profile (opens in new tab) or a CRM. It significantly reduces the risk of unauthorized account access even if a password is stolen or guessed.

The Accounts Where This Matters Most

Not every login needs 2FA, but the accounts controlling a business’s most visible, highest-impact assets, the Google account managing a Business Profile, the website hosting login, the payment gateway dashboard, are exactly where a compromised password could cause real, public damage. Enabling it on those few critical accounts covers most of the actual risk.

App-based authenticator codes are generally considered more secure than SMS codes, since SMS can occasionally be intercepted through SIM-swap fraud, though either option is far better than a password alone.

It only takes a couple of minutes to set up per account, which makes it one of the highest-value, lowest-effort security steps available to any small business.

People also ask

Should I enable 2FA on my Google Business Profile account?

Yes — given how much damage an unauthorized change to hours, address, or category can do to a business, 2FA on the Google account managing the profile is a strongly recommended baseline.

See also

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