Two-Factor Authentication (2FA) has for years been one of the very dependable security technologies that was invoked to address high-risk scenarios — whether to safeguard enterprise resources accessed through the firewall, financial accounts, or — for high-value targets — protect each email login. Most people, to the extent that they spend time thinking about the security of 2FA, conclude — incorrectly — that 2FA offers bullet proof security for authentication. While 2FA is a big step above and beyond the use of traditional passwords, it is not infallible, and thinking so makes the risk of failure even greater.
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