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What is two-factor authentication and why use it?
Updated: 11-Apr-2025

Two-factor authentication (2FA) adds an extra security step beyond a password. After entering a password, users must verify identity using a second factor—usually a code sent via text, email, or authenticator app. This makes it much harder for attackers to gain access, even if they know your password. 2FA helps prevent unauthorized logins, especially after data breaches or phishing attempts.

Many services now offer or require it. Though slightly less convenient, it dramatically boosts account security. Using 2FA on email, banking, and social media accounts is one of the easiest and most effective ways to protect your digital identity.

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