Soumya Prakash Pradhan

With the increasing number of cyber-attacks, it's more important than ever to secure your online accounts. One option for enhancing your account security is two-factor authentication (2FA ).

Two-factor authentication is a security measure that requires a user to present two different forms of identification before granting access to an account.

This article aims to discuss the different options available for using two-factor authentication, dispelling some myths, and highlighting the importance of this extra security layer.

SMS Verification:

This method uses SMS to send a short, single-use code to the user's cell phone to verify their identity. While it is convenient, this method can be problematic if the user is in a location without cell coverage.

Google Authenticator:

These apps generate time-specific codes, which the user must enter along with their username and password to gain access to their account. They do not rely on wireless carriers, and some offer encrypted backups of the codes generated over time.

Physical Authentication Keys:

These small USB devices are compatible with the U2F (Universal 2nd Factor) standard and can be used with NFC and Bluetooth to communicate with devices without USB ports.

Email-Based Authentication:

These methods verify a user's identity through their mobile apps or email accounts.


Some common misconceptions about 2FA include the belief that it is impervious to threats. While it provides an extra layer of security, it is not foolproof.

It's recommended to enable 2FA for critical services that contain personal data and financial information, such as password managers, cloud services, and banking services.

In case of a security breach, it's recommended to change passwords first, then enable 2FA.