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What is Yahoo 2FA?.

The Yahoo two-factor authentication is an additional security layer a user can opt to place in order to provide further protection to their account. Standard username/password authentication mechanisms are not particularly safe anymore as more and more complex hacking technologies have cropped up that can bypass this key and access a user’s account with little to effort. Therefore, the additional layer adds up a randomization factor to this standard authentication protocol via the method of digital signature.

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