What is two-factor authentication?
‘Two-factor authentication (also known as 2FA) is a type (subset) of multi-factor authentication. It is a method of confirming a user’s claimed identity by utilizing a combination of two different factors: 1) something they know, 2) something they have, or 3) something they are.
A good example of two-factor authentication is the withdrawing of money from an ATM; only the correct combination of a bank card (something that the user possesses) and a PIN (personal identification number, something that the user knows) allows the transaction to be carried out.’
Requiring two-factor authentication on employee computers is an important security measure for many reasons, however, it may not always be necessary. If your organisation currently enforces two-factor authentication and you want to remove the hassle of requiring several passwords, then whitelisting is a way to exclude certain locations or computers.
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