What is Two-Factor Authentication (2FA)?
Two-factor authentication adds a second lock to a login: after entering the password (something you know), you must also provide something you have — an OTP delivered to your phone, a six-digit code from an authenticator app, or a fingerprint. A stolen or guessed password alone then becomes useless to an attacker, because logging in still requires physical access to your phone or your second verification factor.
Indians already use 2FA daily — every UPI payment and netbanking login demands an OTP — but many businesses leave their most valuable accounts unprotected: the email that can reset every other password, the Google Business Profile, the hosting panel, the WhatsApp Business account. Enabling 2FA on these takes minutes and blocks the vast majority of account-takeover attacks. Authenticator apps beat SMS OTPs, which SIM-swap fraud can intercept.