<p>Have there been any decentralized 2fa service built into the blockchain? it can be bitcoin or any altcoin. </p>

CC BY-SA 3.0
2017-10-04T14:48:23.750Z
Nope, there's none.
MCCCS
CC BY-SA 3.0
2017-10-04T18:26:08.947Z
This makes no sense. You have to prove the validity of your transaction to the chain - the chain can't send you an SMS to verify.
Pieter Wuille
<wallet><two-factor-authentication>
Are there any bitcoin or altcoin wallets that provide a "decentralized" 2fa setup?
Patoshi パトシ
# Are there any bitcoin or altcoin wallets that provide a "decentralized" 2fa setup?

(Asked by: username_0 on 2017-10-04)

Have there been any decentralized 2fa service built into the blockchain? it can be bitcoin or any altcoin.

**Tags:** wallet, two-factor-authentication

> **Comments:**
> **username_1**: Nope, there's none.  
> **username_2**: This makes no sense. You have to prove the validity of your transaction to the chain - the chain can't send you an SMS to verify.  

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## 0 answers

