Two-factor authentication (2FA): what is it, what is it for and how to activate it?

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Two-factor authentication is an extra layer of security to ensure that only you can access your account, even if someone else knows your password.

Current technology offers countless possibilities for consuming products and services , which generates an excess of information circulating in digital environments all the time.

Therefore, companies and consumers need to be concerned hungary phone number list keeping important information and data protected.

But do you know how to use two-step authentication to protect your accounts?

In this article, learn how two-factor authentication works, what it's for, and how to activate it to protect your passwords and your Melhor Envio account.

What is two-factor authentication?
Two-factor authentication is an extra layer of security designed to ensure that you are the only person who can access your account, even if someone else knows your password.

With two-factor authentication, just entering your password is not enough to log into your account.

Also known by the acronym 2FA (two-factor authentication) , the feature adds a second verification of the user's identity at the time of login , preventing access to their accounts even when the password is leaked.

How does two-factor authentication work?
Two-factor authentication makes it harder to access your account. If your password is hacked or your phone is stolen, it’s unlikely that anyone else will be able to access your accounts because they won’t have your second-factor information.

The most common form of 2FA is a verification code sent to your phone. After you enter your username and password on a website or app, you will receive an SMS with a numeric sequence and a field for authentication.

Applications like Authy and Google Authenticator , for example, show constantly updated random codes that must be entered on platforms that use the two-factor authentication feature.

This measure is also used in the physical world, such as in ATMs that ask for fingerprints in biometric readers , after validation with a password.