Bitcoin Forum

I will like to know  secured online wallets that require 2fa before sending btc.

Blockchain.info requires SMS verification before logging in, that is some sort of 2FA.

They need to extend it to the sending of Bitcoins too, but if the 2FA was bypassed or compromised at login, no form of 2FA will help, when transactions are being send. You might link that to another mobile phone to strengthen the 2FA, if you want double protection.

In some countries SiM swap & duplication is quite common, so this is not 100% bulletproof.

This is only for logging in. If someone is able to get past this verification, they have access to the whole wallet; meaning that they can send Bitcoin.

In my experience with Bitcoin, I have never come across a paper wallet that has 2FA. I don't see the use of it either. I would consider it as a nuisance each time I want to send Bitcoin. If you have a strong password with number and capital letters, you don't need such 2FA before every transaction.

:)

i would recomended xapo wallet.

sure and I think this would help...

You can check with coinbase.com 2fa wallet security with sms and email confirmation before logging from a new computer or internet connection, It is very good security because if a person is able to hack your email but he cannot log in to your mobile and get the sms code. I have faced the hack of my computer once and my electrum desktop wallet got hacked and the hacked got hold of my electrum wallet seed key but he was not able to hack my coinbase wallet as it was protected by 2fa - sms confirmation and then email confirmation of new IP login. So this way i got protected from coinbase but i lost my bitcoin worth 0.1btc from my electrum wallet and even i have to lose all wallet address because the hacker got the seed key and electrum dont have facility of changing the seed key.

Please guys read before replying.  I said 2fa before sending

well blockchain.info requires 2fa before logging into account, i have never had any problems with it

2fa usualy be used before login to online wallets, Blockchain and blocktrail are using it too. And there are codes who must be filled before sending bitcoin ( you can set it) and does not 2fa.

Blockchain.info have this feature to login into account and actually if you require 2fa verification before logging than it is same like 2fa required before sending bitcoin.

Functions 2FA security working before you login so when you have passed that stage you can directly to send bitcoin without need 2FA code.

blockchain and coinvase are the most popular two wallets which supports 2fa security but i always prefer an android wallet like mycelium which supports private key export facility

+1 for your signature campaign totals.. you have no clue what OP is asking. He needs a service, where you need to use 2FA before you send funds from your account. The 2FA at login with some

services has nothing to do with this need. Blockchain.info has 2FA at login, and it has a secondary password before you can send money. The problem with this is, once you logged in, you can change

that password. So it has little value, if your account is compromised.  ::)

Coinbase offers this kind of feature, you can specify in which situations you require 2FA.
For example:

Am glad someone clearly  gets my point

That just looks like a second verification before sending your amount you will be required to putting your codes in there. but I think that has already become a mandatory requirement for all of online wallet provider.

Thanks but  coinbase bans your  account if used for gambling. Do you know any  other wallet with this  feature

On that idea, if you can bypass the first 2FA screen, can you not bypass the second one as easily?
Coinbase.com uses 2FA on signup and, if you don't mind waiting 48 hours, you can store your coins in a vault and you can add as many emails and phones as you want to help keep the Bitcoins safe. You get authentication messages on each phone or email you add but you do have to wait the 48 hour cancellation period for protection. (I think there may be an option for you to customise your wallet in order to change this by producing another wallet and a google search would probably help you find information about this).



Send the coins through a bitcoin mixer in order to protect them. Alternatively, you could use an electrum wallet or another lite wallet to transfer funds and then it's like your receiving coins from a friend or something who likes to gamble. (If you do it every week, then it may look like you're advertising the site instead - which you are not banned for).

...

blockchain.info's wallet also offers a "Second Password" option, which asks you to provide that second P/W before sending out any BTC.  I have used that, and it works just fine.

Both the Trezor and Ledger Nano (I own one of each) also use rudimentary (= good enough for me) 2FA both to get access as well as to send BTC out.  And I have used those as well, they both work just fine.

Thanks for the trezor tips. Does trezor use sms 2fa?
If no, what 2fa does it use

Trezor uses its own rudimentary 2FA.  When you plug it into your USB, you must put in your 4-digit passnumber (using a clever little method to beat a keystroke logger).  And when you want to send out BTC, the device itself (via a display) asks you to verify what you are doing.

So, in some ways it is not as secure as "typical 2FA" (like SMS messaging or Google Authenticator), but if your adversary does not have the device, there seems to be little way that the BTC "within" can be spent.

So, "rudimentary" (2FA) seems to be the right word to use.  "Good enough" for most users.

Most online/web based wallets support 2-Factor-authentication via SMS or using the google authenticator application. I would suggest you to use greenwallet's web app or blockchain.info's web application. Both of these support mobile 2FA.

I have also used 2FA On a desktop wallet application called - Electrum. They make use of a third party service called Trustedcoin which makes use of a multi-sig system. You can read more on the 2fa documentation page of electrum.

I will not recommend xapo wallet.Yes 2fa is available in the xapo but i have heard many news here on this forum and outside as well that xapo has closed users account with bitcoin locked in that.Specially if your bitcoins coming from gambling sites.
I would recommend blockchain.info wallet which is very secure with 2fa enabled in it also.

If they ban your accounts do you have still access to you bitcoins or you should forget about the bitcoins there?
I haven't seen any other wallet which has the 2FA implemented when sending bitcoin.

i guess the acount will be locked and so does with the balance inside of the account,the only way is to contacti coinbase's support to get your funds back,that's why using coinbase is such a bad thing,even the bitcoin is your own,you can't have full control

Almost all if not all of the online wallets offer such opportunity because they had to suffer the most number of hacks and steals of users bitcoin before taking such measures. Nowadays these wallets have done a lot toward security yet they still remain online wallets and they have high risk when you put your coin there. Some hacker can hack their database and be rich with all of the bitcoin addresses and private keys there. Even blockchain says that it decrypt your wallet in your browser through node.js the node.js is not the safe as I know that is related to Java which has a lot of vulnerabilities.

I do not see how most of us would be needing such security measures. I see that most of the people in this thread are signature campaigners and newbies with less than one BTC in their wallets. No hacker will waste time and effort on our wallets. :D

Blockchain.info offers this option "when logging in" also coinbase, circle etc... almost every browser-based wallet offers such functionality, Not sure about PC based but I doubt they offer this.

I never used 2FA authentication on blockchain ever. because I feel it is not important. actually I don't use blockchain as my primary wallet, but now I feel I should setup 2FA on blockchain to secure my account..

Its a real good choice that your primary wallet is not blockchain and this should be the way to be for as long as you will use bitcoin. Adding 2FA helps a lot in securing your account but it can do nothing if the website of wallet of blockchain goes offline than your bitcoins are gone except the case where you have saved your private keys somewhere and can import them in other wallets. Better stick to desktop or hardware wallets.

I think that nearly all the main online wallets require 2fa or at least provide it if required.

The Ledger Nano S has the FIDO for stronger authentication as can be seen in the pic below

https://www.ledgerwallet.com/images/products/lns/video/auth.png

It has also the PIN to protect logging in from any malware or any other software but with the Nano S you should use buttons.

This means that even if your computer is infected you still are safe using this wallet (which is for bitcoin and ethereum too)

Well 2fa is mobile verification require for login to an account.I hear 2fa can be bypass.So my suggestion if you have large amount of BTC you can use deep cold storage.For small amount you can use blockchain.info with 2fa for small amount.thanks :)

Yeah in general it is extremely secure. But if your wallet is ever stricken with such safeguards, then the hacker will be wasted. Because surely they already get the secret code of your wallet and they move the code into another purse and I think they will start taking all BTC you when your wallet filled with many of the bitcoin. So if you want to do security, make sure the account you never get hacker attacks

How is data stored though? It's good until somethig bad happens!
If it uses flash technology then it's likely to fail in an unreasonably small amount of time (If using every day, you're lucky to get a year out of it).

Yeah. As far as I know, 2FA is always required before logging in. I've never seen a wallet requires 2FA before sending bitcoin, but probably I just don't know about it yet.

Just wait if anybody knows a wallet you want.

Even if ledger nano S stores the data using the flash technology it is not bad at all as you say.

Searching in google it says that the flash drives can last up to 10 years if you not power up in pc.

You can check/search here how safe is the ledger nano S or even ask here https://bitcointalk.org/index.php?topic=899253.0

Few require it to send but most online browser wallets adds it as an option when logging in. Blockchain.info and most online wallets do so but not sure why a computer based wallet like electrum hasn't added it yet.

I know that ledger nano S is the new hardware wallet from ledger. Ledger Hw.1 it has a life span of 30 years or 500.000 cycles of usage , it says so in it box so not a problem what technology uses. The company guarantees it has a lifespan of 30 years which is not bad at all cause we don't know if we will be alive after 30 years let alone what will happen to our bitcoins. Ledger makes one of the most cheap and very good working hardware wallets.

No one requires that unless you specify it and mostly these wallets enforce that at login rather than on sending transaction, Anyway that wouldn't be an issue since no one would be able to login without the 2fa auth.

I'm skeptical of 2fa, since SMS for example is not a secure way of transmitting information. Nowadays, the underlying encryption can be hacked quite easily. The point of 2fa is almost completely erased, if you use the same device for opening a web wallet and receiving SMS. In addition, by using 2fa, you reveal your phone number to the web wallet operator which has negative privacy and security implications. For example, if the wallet operator is hacked, your phone number might be revealed to criminals and you could be an easy target of personalized scam attempts.

So if you want to use 2fa, better use a specialized device with a local wallet.

For storing larger amounts of Bitcoin, I would recommend cold storage only (for example paper wallets). This way (if the addresses were generated in a secure environment) you eliminate the risk of hacking and third party scams altogether.

ya.ya.yo!

it wouldnt be an issue for sure, i know that blockchain.info requires 2fa for logging in into the wallet though you dont need to do that when you send btc

I personally don't know about places that require 2fFA before sending Bitcoin, but Coinbase and Blockchain.info (and maybe Xapo) require 2FA to log into your account. There might be some settings that you can configure on some online wallets to change that, but I don't know them off hand.

I have had a problem with 2fa as well.
It was from my Google account. I had switched sim card since I needed a new one to refresh my phone identity and unfortunately, I lost my old one.
I did not really think of it much until I had to log in my account again from a different pc.