2FA

abbreviation for

1. two-factor authentication ( def ).

Word History and Origins

Origin of 2FA¹

First recorded in 2005–10

Example Sentences

By requiring users to provide additional verification, such as a code sent to their mobile device, 2FA has made it more challenging for cybercriminals to gain unauthorized access to user accounts.

From Salon

However, as hackers continue to refine their tactics, experts say users need more than 2FA to guarantee security.

From Salon

While 2FA enhances security, it can also foster a false sense of confidence. 2FA seems foolproof, leading many people to pay less attention to other security practices, like using strong, unique passwords for each account.

From Salon

The lack of encryption in SMS messages also renders them susceptible to interception by hackers, further undermining the security of this 2FA method.

From Salon

As 2FA has become more widely adopted, hackers have developed increasingly sophisticated techniques to bypass security measures.

From Salon