2FA (Two-Factor Authentication) — is additional account protection. After entering the login and password, the service asks for a one-time code. It is usually received through an authenticator app, via SMS or in another way. Even if the account falls into someone else’s hands, it will not be possible to log in without the code.
What 2FA Is Needed For
The main purpose of 2FA — is to make the account more secure. If the service detects a login from a new device, browser or another unusual location, it may additionally request a one-time code.
Two-factor authentication is used by many websites and online services: social networks, advertising platforms, email services, messengers, marketplaces, crypto exchanges, banking apps and other platforms where it is important to provide additional protection for user accounts.
2FA in Traffic Arbitrage
When purchasing, selling or transferring accounts, it is important to receive not only the login and password but also access to 2FA.
If the platform asks to verify identity after login, it will no longer be possible to access the account without a one-time code. This may happen, for example, after logging in through a new proxy, another anti-detect browser or a new device.
Therefore, a secret key, backup codes or access to the authenticator app are usually provided together with the account.
Important to Know
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Secret key — is a set of characters used to connect 2FA to an authenticator app. It can then be used to generate one-time codes.
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One-time code — is a six-digit code that is regularly updated and used to confirm login.
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Backup codes are created in advance. They are useful if the device with the authenticator app is lost or temporarily unavailable.
