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How does two-factor authentication (2FA) work? Is it really safe?

How does two-factor authentication (2FA) work? Is it really safe?

Nowadays, just having a complicated password and some questions about your pet or favorite food is no longer enough. This is where multi-factor authentication comes in to prevent all types of data leakage. The application or website that you or others are trying to access ensures that only the account or platform owner can access it.

The most common form of multi-factor authentication is two-factor authentication (SFA), which works by adding an extra layer of security. The platform you are accessing requires additional 2FA credentials, such as a password, Touch ID, or content that only the account holder can access.

How does two-factor authentication (2FA) work? Is it really safe?

Image Credit: tech juice

2FA method

This method is necessary because it prevents hackers from stealing passwords and emails containing malicious emails. More information: Billions of passwords lost in a serious data breach.
The type of two-factor authentication varies from platform to platform, especially for storing sensitive data such as bank information, passwords, phone numbers, and soon. Here are some types of 2FA:

1. 2FA SMS

If you have ever used platforms such as Gmail (everyone used it) or Discord, you may have noticed that after you enter your email address and password to log in, they will ask you to enter a login code. Once you provide the phone number for the service you are using, the service provider will send you a text message containing the code.

After entering the code, you will be able to access the platform you want to access. The advantage of this is that if your phone number is not public, hackers are less likely to break into your account. It also mainly applies to banking applications that require you to enter a code sent to you before starting online banking.

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2. Authentication apps

These are basically apps for iOS and Android. If you are a Discord user or use GitHub, such platforms will use applications such as Authenticator to generate the r code that your smartphone trusts. It works as follows: The authentication application installed on your phone simply executes a six-digit code for the service you use.

However, these codes are time-limited. Therefore, if you use the code you see in the app after 1 minute, the code is invalid, the app will only generate a different code, and the process will continue. It looks like a substitute. Therefore, when your phone number is posted on the corresponding social media profile.

3. Biometric authentication

Just by the term biometric, you might know how it works. For those who don’t know, this method of authentication depends entirely on factors such as fingerprints or retina scans. Although it looks high, the security of this data stored in the service seems very daunting, because you can’t change your fingerprint at all, or change your eyes and their corresponding retina.

Is it really safe?

The biggest question now is, is 2FA really safe? Now it is over 50-50, and it is both and not. Because even though text messaging and identity verification applications are very secure, what are the chances of them increasing? Lost your phone? Therefore, this form of security also has loopholes. Next comes biometric authentication, although it seems to be very secure at the moment: criminals can copy fingerprints by placing scanned fingerprints on greased paper and printing out a hologram.

How does two-factor authentication (2FA) work? Is it really safe?

Image Credit: Tech Juice

In Karachi, fraud crimes are also carried out in the same way. The same is true for retinal scanning because the data and tools to replicate the retina are effective, and there are even methods to replicate the retina. With so many vulnerabilities, one can only wonder if there is really a way to be completely secure without hackers trying to bypass security in any way?

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Now, while many companies are working on new forms, there are some things you can implement to ensure that the 2FA method is also safe: Use a different number for your 2FA SMS instead of your personal number. Do not use email to reset your account. Tell us which account security method you prefer in the comments below.

OVERVIEW:

Once you provide the phone number for the service you are using, the service provider will send you a text message containing the code. The advantage of this is that if your phone number is not public, hackers are less likely to break into your account. Now, while many companies are working on new forms, there are some things you can implement to ensure that the 2FA method is also safe: Use a different number for your 2FA SMS instead of your personal number.

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