two-factor authentication (2FA)
Word list · T
A sign-in method using two different kinds of evidence, such as something you know and something you have. Spell it out before using 2FA when readers may not know the short form.
Example: Turn on two-factor authentication (2FA) to add another layer of protection.
Explore furtherNIST: multi-factor authentication
When referring to a specific product or interface, match its actual labels and official names.