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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. Chapters 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 COMMENT below and let us know what you think of the video. Post your follow-up questions there too! SUBSCRIBE to this YouTube channel and select the bell 🔔 for notifications:    / @aantonop   JOIN this YouTube channel about Bitcoin and open blockchains to become a YouTube Community Member and access custom emoji and other perks:    / @aantonop   BECOME a Community Builder:   / aantonop   LEARN from Andreas in one of his popular Workshops which will teach you practical crypto skills. There’s even a FREE Intro to Bitcoin & Open Blockchains to get you started. https://aantonop.io/takeaworkshop You can also learn from one of aantonop's many books about bitcoin, ethereum, and open blockchains. Andreas has written three technical books for developers about blockchain technology, Mastering Bitcoin, Mastering Ethereum, and Mastering the Lightning Network published by O’Reilly Media. He’s also written The Internet of Money Series books, which explain why bitcoin, ethereum, and open blockchains matter. About aantonop: Andreas isn't promoting a company or an organization; he's paid by the community (people who support this work on Patreon and YouTube) and provides an unbiased look at open blockchain technologies, what they can do for our societies, and how to get involved (if you decide you want to). Learn more at https://aantonop.com From Andreas: You may already know that my mission is to educate as many people as possible about #Bitcoin and open blockchain technologies. Watching these videos and sharing them with others is a big part of that. Thank you for being part of this mission. **Learn More From Andreas* Amazon & Kindle: http://www.amazon.com/-/e/B00MVAG8Z8 Audible: https://www.audible.com/author/Andrea... E-books & Merch: https://aantonop.io/shop Patreon:   / aantonop   Website: https://aantonop.com Workshops: https://aantonop.com/workshops **Connect with Andreas on Socials** Facebook:   / andreasmantonopoulos   Instagram:   / amantonop   LinkedIn:   / aantonop   Twitter:   / aantonop   Thanks for watching, sharing, and subscribing!