Topic: Wallet online for Bitcoin (Read 720 times)

Generally if you have large amount of funds its always best to store your coins offline, either a paper wallet or hardware one (ledger/trezor). Online wallets no matter how safe will always be at risk of hacks/ fraud/incompetence. The parity wallet which was generally considered one the safest and most reliable places to store coins is one of the best examples of this where a 15year old was able to take advantage of poor coding to essentially freeze what was at the time 400 million in ether (a lot more now).

Of course this decision will primarily depend on your funds but if u have anything over 1k-1.5k its best to pick up a hardware wallet.

Yes indeed we must secure our assets for example securing in the wallet, just imagine if we do not secure our assets then online criminals will act and steal our assets.

What about brain wallets?

I personally use paper wallet,The fact that wallet is just a container for private keys and we just hold keys and not coins allows me to say that paper wallets are the most secure way to keep funds,so we just use offline bitcoin storage(we don't need to store our keys in computer) and what can be more secure? I don't know.Anyway that's my opinion and of course this wallet has disadvantage too,it would be better to consider and wait for more experienced people's opinions, such as this guy seems.

It is exactly, if you don't know what you are doing. However if you know a bit about security and technology, it will be very simple to do safely.
Even if the script used to generate was malicious, if it cannot store data and submit it online, then the malicious part of the code cannot do anything.
I'll give you an example:

Peter boots off linux live CD on a computer without internet connection and hard drive. He runs the website script for generating paper wallet. However the script has a line that sends the generated private key to server, but as the script cannot save anything on the hard drive, it cannot submit them online as Peter's computers is detached from the internet and does not have any kind of storage media.

End of the story, however it would be theoretically possible to save some kind of file to do this if executed on the Live CD for example. Hardware wallets (with screens) are certainly the best opinion for people without the needed technical knowledge because generating a private key on infected PC would basically cause all of your funds to a very likely possibility of their funds getting stolen. This is the reason why you need to be airgapped while doing it, on a fresh distro without anything downloaded to reduce the risks to minimum.


Great to hear that!


Not sure if Trezor supports ETH natively, but you can use MEW with the guide found from here: https://blog.trezor.io/trezor-integration-with-myetherwallet-3e217a652e08

The transactions are always signed on the trezor, rather than the website of MEW. However always remember when sending ETH to check the transaction on your Trezor before Signing & Broadcasting it. It is possible for malicious code to send an wrong request to your Trezor, and if you do not check carefully the details, it might end up in the wrong address.

Ps. If sending tokens, the destination address is the contract address so you will have to find another way to verify that this is the transaction that you indeed want to send.

Good advice was ordered by Trezor and it works great . but for now I have everything in ETH I understand that this is Wallet on BTC anyway? That's how it works?

I am the same The paper wallet method is way easier to fail than the hardware wallet method. I do not recommend using hot wallets for storage of coins, and never would advise for online wallet as you don't have the full control over your coins.

As far as i know, Trezor uses with MEW was not affected.
It should not have been as metamask was neither.

Yes, maybe it was my mistake because of my long sense of comfort in the service (wallet online). Thanks for your advice, currently only a few coin assets are in my wallet online. and I've started to move my assets to the hardware wallet.


So If I use the Trezor wallet is not safe too?

Thank you for the advice sir, I am still a newbie about the use of wallet, still need a lot of advice and learning. I feel helped by what you say.

That's the first mistake that you did, trusting a centralized party to protect your funds while they could just steal all of them and run at some point if some kind of data breach happened and they could not recover from it.


Dedicated people make mistakes at some point. It is just a matter of time when they do, and when it happens you are all on your own.
You cannot protect your funds, if someone else is holding them and has access to them as well. Multisignature would be a bit different.


It does not matter whether you did or not. If you used google DNS at the time, even accessing the official site could have caused for your private keys to get stolen assuming that you used some of the unsecure methods. Metamask and such are the recommended way to access MEW as every transaction is signed on your browser's metamask plugin rather than the source code of the page.

I always believe in what they do to protect our funds. Their service appeared to help us. for saving our assets. They have long been dedicated to it, and even to this day. Reasonable many hackers are tempted to hack, but it all depends on us, whether we can protect our private key, our data ourselves?
I use jaxx from 2016 early until now, nothing happens with the security, as long as only we know and save (Phrase and Pin) our funds will be safe.

Yes, I deeply regret that this is related to DNS attack on MEW wallet. I've done bookmarks so at least my funds are safe. Thanks to your warning about DNS attack.

Which in online wallet case you are trusting them to protect your Private Key and your data.
No Guarantee that their security are safe enough to hold user coins, then again as long as you're using reputable wallet it should be safe (I've seen a few complaints directed to Jaxx.io, so I'm not sure what to feel about that).
Also just a heads up, there are DNS attack on MEW wallets, make sure you are safe from those attack.

A more secure method is to have multiple backups of your Private Key or Wallet File in case one of them break/lost/forgotten.

Hardware wallet is better than an online wallet. But in my opinion, as long as you can protect the private key or phrase, it does not matter.
Now I use Trezor wallet ( to safe my worth coin, I think this is a very secure wallet), Jaxx (this wallet is very flexible, I can buy and sell my coin. But the fees is little high) and MEW.

I personally use EXHOS wallet but I advise you to keep bitcoin in off-the-shelf and preferably on a flash drive.

try to avoid using online wallets,but if you have no other option -use blockchain.info
I know it is bad,sometimes bugged and not very safe,its fees are random to say the least
but it is the best and the fastest option to keep small change for day to day operations
never use it for sums over ,well you can afford to lose
I don't keep more than 200-300$ there,usually
as different options,you can try: https://bitcoin.org/ru/wallets/web/
out of the wallets represented there,I use Bitgo-https://www.bitgo.com/ it is a decent wallet,with added security

If you are keen to use online web wallet with multi-factor authentication then try using NAGA wallet, it allows you to store, send & receive Bitcoin, Litecoin, DASH, BCH, ETH & ERC-20 tokens. It gives you ERC-20 token address that you can use to receive your tokens from ICO's, once the distribution is finished by ICO, the token will be automatically displayed you don't need to put smart contract address. Also Every time you have to provide multi-factor authentication code if you try to send your coins/tokens. The drawback is your private keys are held by NAGA but they claim that private keys are protected using cold storage same as coinbase doing.

Rarely any wallet has such a thing. Online wallets may do, but most often they are still more insecure than a desktop wallet.

Two factor authentication on a online wallet where you are not the only one having the private keys is very insecure, although alot better than an online wallet without one.

Check out parity if you don't like metamask.

maybe, it could be strange, but i don't like metamask, cause, its haven't multi-factor authorization

Cryptonator is an all-in-one Bitcoin online wallet that supports various crypto currencies such as Bitcoin (BTC), Litecoin (LTC), Ethereum (ETH) and others. Enables quick and easy direct transactions and allows instant exchange between different crypto currencies in one personal account

Apparently Metamask gives a lot of security. But you're right. I bought TREZOR and www.myetherwallet.com I use only small transactions. I keep everything on offline wallet.

Thers are so many choice for you about wallet online for Bitcoin, Such as: Bitcoin Knots, Bitcoin Core, Green address, Amori Bither,....