Some time ago i've found an article describing how 2FA on a blockchain could secure account, and then just forgot about it.
But today I've read that resfinex exchange already added ability to use 2FA on a blockchain https://medium.com/adamant-im/world-first-2fa-on-a-blockchain-in-real-life-7adf5554728d. I've found it interesting and tried by myself. It works like SMS 2FA, but it seems more secure as it is decentralized and doesn't depend on carrier.
Recent events ($45 mln stolen using a sim swap) showed that SMS authorization is not secure. Also I read about malware that compromise Google Authenticator.
Don't you think 2FA on a Blockchain is something that can make account more secure?
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* This article was originally published here
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