2FA
Americanabbreviation
Etymology
Origin of 2FA
First recorded in 2005–10
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Setting up 2FA helps block bad actors who might know your password from accessing your private chat history.
From MarketWatch ● Jul. 1, 2026
"Coinbase will never ask for your password, 2FA codes, or for you to transfer assets to a specific or new address, account, vault or wallet," it said.
From BBC ● May 15, 2025
Periodically review and update security settings, including 2FA methods and trusted contacts, to ensure that accounts remain secure even if devices are lost or compromised.
From Salon ● Sep. 6, 2024
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 ● Sep. 6, 2024
As 2FA has become more widely adopted, hackers have developed increasingly sophisticated techniques to bypass security measures.
From Salon ● Sep. 6, 2024
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
