What is Two-Factor Authentication?

What is 2-factor authentication (2FA) and why is it important? Authentication means proving who you say you are; 2FA means using two distinct characteristics to prove you are who you say you are. Authentication is an important security feature for everyone using computers, and is vital to understand when holding bitcoin, ether, and other cryptocurrencies. If you hold cryptoassets (Bitcoin, Ethereum, Monero, etc), you need to know about multi-factor authentication.

Learn more in this Q&A from Andreas M. Antonopoulos.

0:00 What is Two-factor authentication? (2FA)
0:24 Multifactor authentication as one of three things. The first possible factor you can have is something you know.
1:16 The second factor is something you are.
1:53 Biometric factors have advantages/disadvantages.
3:12 The final factor is something you have.
4:57 No single factor authentication is sufficient on its own.
6:09 What if I lose my yubikey?
7:45 2FA – Something you know, something you have, and something you are
8:33 Hardware base multifactor device – U2F

#2FA #CryptoSecurity #MFA

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