The default Magento 2.4 offers two-factor authentication. Before the release, Magento 2 provided an option to install two-factor authentication. Facilitates merchants to enable or disable Magento 2FA as per their business needs. In case of the latest Magento 2.4 version, you cannot disable the two-factor authentication. You must not disable Magento 2FA for security purpose, but sometimes the need arises for several other reasons: For testing purpose.The store is not yet developed.As it is not possible to disable Magento 2FA in the latest version, a Skilled developer named Mark Shust has developed a tutorial to disable Magento 2 Two Factor authentication. He suggests adding toggle from the Magento admin panel to enable and disable 2FA. To get better understanding, you need to refer the article at: https://meetanshi.com/blog/disable-magento-2-two-factor-authentication/