Questions tagged [wallet-security]

Questions about keeping wallets and e-wallets safe.

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1answer
53 views

Is it possible to recover a wallet from Address and Password?

I had an Electrum wallet on my laptop that broke, contrary to the usual "forgot my password" questions, I do have my password but I don't have the seed and the laptop is on repair and the ...
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23 views

"Do not buy hardware wallet from a 3rd party seller" security tip, does it apply if authorized in the official website?

"Do not buy hardware wallet from a 3rd party seller" It's a well-known security guideline for newbies. I wonder though, does it apply for 3rd party sellers that are listed on the official ...
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What do people mean when they say that Bitcoin are "unconfiscateable"? [duplicate]

So all my Bitcoin are on an encrypted wallet.dat inside a VeraCrypted USB memstick inside a fireproof safe. While this might stop random a burglar, how does it stop the government from confiscating ...
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1answer
54 views

Crossing borders: security scheme ideas

More and more airports force you to decrypt your data, they will also dump your stuff keeping a backup. This could happen in just about any border you try to cross. It is only safe to expect this to ...
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1answer
1k views

Should I share my seed phrase to earn airdrop tokens?

Someone on Face Book said I could earn free crypto by appying for an airdrop. He told me to download Blockchain from app store to my phone. I did this and created my account with a password. I also ...
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2answers
152 views

Suggestion for Airgap Bitcoin Core - Comments?

Lesson learned the hard way: I lost a small value of bitcoins due to foolishly backing up private keys to a file which was uploaded to a cloud server. My wallet used to be bitcoin core. Right now my ...
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1answer
339 views

How can Bitcoins be sent without Blockchain.info knowing your private key?

Blockchain.info is a hybrid bitcoin wallet with client-side javascript encryption. I understand that the wallet.aes.json where the private keys are stored is encrypted (client-side). But how can ...
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1answer
111 views

Manual work as source of entropy

Working on an opensource air-gapped crypto vault, in which I have the regular method of relying on OS to provide cryptographically secure random source and use that to generate the mnemonic phrase. ...
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1answer
134 views

Import private key in HSM Luna SA

I need some clarification on how keys are imported into a HSM Luna SA. I should import BIP 32 private keys of multisign wallets. There are currently two keys: one for the user and one held by the ...
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1answer
164 views

How to check that I control an address

I recently created a bunch of bitcoin addresses (public starting with 1, PK starting with 5) from a paper wallet, that I downloaded from their github (https://github.com/walletgeneratornet/...
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1answer
40 views

Is there any statistical evidence that 2 of 3 wallets are indeed the most common one?

I read the following statement: 2 of 3 wallets are the most common multi-signature wallets created. In this case, the wallet requires three signatures, but only two are needed to authorize a ...
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1answer
81 views

Why is it bad to split up a wallet seed redundantly?

I have been reading a lot about wallet security and this seems to be universally considered a bad idea (see for example this video or this answer), but I am struggling to see why it is not a good ...
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1answer
73 views

Are Satoshi's satoshis less secure than they should be?

So, Satoshi mined a bunch of BTC early on (but not in a "pre-mine" way), and has not moved them ever since. Doesn't that mean that his coins thus uses the very earliest "format", ...
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3answers
191 views

Why do we need miners

I know everyone says that we need mining to solve the double spending issue, but why? OK I am Alice and I want to send Bob some money, but double spend that money. This is the part where you say ...
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0answers
40 views

Which app generates stronger mnemonic seed?

Mnemonic phrase, mnemonic seed, or seed phrase are defined as a secret group of words that represent a wallet. When used in sequence they allow access to the cryptocurrencies stored within. “Mnemonic” ...
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1answer
73 views

What a completely-decentralized cryptocurrency might look like

It occurred to me that a more useful cryptocurrency would be one which didn't require a network to validate transactions. It would consist of some kind of (self-mined?) token that can be proven to be ...
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1answer
66 views

RPC security of bitcoind node

If I have a fairly default bitcoin.conf file, let's say: rpcport=8332 txconfirmtarget=6 ie: notably one where I don't specify things like rpcuser, rpcpassword - is this insecure? As I understand, ...
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1answer
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If I buy crypto on a third party site, such as Coinbase or any other sites, how do I safely transfer my wallet into an external 'cold wallet'?

By cold wallet, I mean any type of encrypted USB etc. If this isn't possible how would I buy crypto and then be able to store it on a USB in the first place? This may be a stupid question but I'm kind ...
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40 views

I created a wallet with bitcoin core in an offline way without download 350 GB of info, is there any risk for mentioned wallet?

I created a wallet with bitcoin core (form this link https://bitcoin.org/en/download) in an offline way without download 350 GB of info of bitcoin core (I just download and install bitcoin core ...
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1answer
3k views

Is the public address for Tesla's wallet known?

I understand if this isn't likely the place. It has been all over the news that Tesla has bought 1.5 billion in bitcoin. I'm curious if tesla's public wallet address(es) are known? If they are not ...
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5answers
493 views

Store Bitcoins offline

I have some bitcoins and ether at Blockchain.info and I am really scared of losing them. How do I best secure them? Right now I have a paper with the code to restore my wallet, but my coins are still ...
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0answers
40 views

Generating HD wallet seed phrase

got a new hardware wallet and thinking of using my own set of bip39 words instead of wallet generated one, combined with a passphrase.
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1answer
72 views

Is it actually possible to secure your coins while also allowing access to "near and dear" when you die?

I have my wallet.dat files encrypted, stored on a computer which in turn is encrypted. All storage devices where the files are backed up to are also encrypted. I strongly doubt that any human could ...
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26 views

How to store hd wallet seed in production server

I've developed a cryptocurrency payment gateway, which is a web application that generates new addresses for users, I've developed a HD wallet as a hot wallet for my application, and all addresses for ...
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1answer
3k views

Mining Bitcoin Wallet's Private Keys Instead of Blocks

Instead of mining Bitcoins directly, couldn't one of these huge processing farms dedicate their processing power to instead discovering the private keys of the largest wallets on the ledger? I ...
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1answer
191 views

is there some one expert with the btc recovery tool?

trying to use btc recovery tool , installed every thing , python 2.7 and all the required pibs . followed tutorials . actually i need to find second password so am using the command i.e c:\python27\...
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50 views

Bitcoin Core Security

Is there any site or resource where I can learn how to do security transactions while trading on bitcoin testnet
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49 views

Security concerns with walletpassphrase

I have some security concerns with walletpassphrase: If it stores the passphrase for some unit of time. ie. so you can send funds, surely if the server is compromised, within that timeframe, the ...
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3answers
3k views

What can you do with the private key?

I am trying to understand all security regarding blockchain and bitcoins. Let's say you have a bitcoin wallet which is secured, only you know the private key. This bitcoin address was created on one ...
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1answer
57 views

Someon offered me btc mine trough his mining device

Someone from the social network offered me a btc mine through his mining device. He asked me for an email address so he could create a mining wallet address for me. I gave it to him. I don't know what ...
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1answer
85 views

Connecting a Hardware wallet to a full node

I'm trying to connect my hardware wallet to my personal full node for the sake of privacy. I need to know the node's IP, port, and RPC credentials. The first two are easy, I can see my full node in ...
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1answer
36 views

Is our hardware wallet safe if the PC or Mac has 3rd party apps?

For example, our PC or Mac might have 3rd party apps installed, such as Pixelmator, GIMP, or VLC player. They are usually considered to be safe apps. However, is it true that when using a hardware ...
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1answer
81 views

How do wallets work?

It may seem like a vague question, but what I understand so far is, you have a public key (address) which people can send coins too, and then you have the private key which you need to send coins to ...
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2answers
2k views

Using a dedicated phone as "hardware wallet"

Is there anything inherently insecure about using a dedicated Android phone as a "hardware wallet"? A dedicated phone implies: a clean ROM without gapps, e.g. GrapheneOS, Lineage OS without ...
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2answers
89 views

If a bitcoin wallet service provider terminates a users account, what happens to the funds?

A friend of mine has/had a bitcoin wallet service provided by an online marketplace. Sounds like he had some kind of disagreement with the site administrators and they terminated his account. At that ...
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1answer
64 views

Do Coinbase, Coinbase Pro, Robinhood, Gemini, GBTC count as Web Wallet?

According to a 99Bitcoins video and some writing, Web Wallets are to be avoided because they are not secure. Does that mean when you buy bitcoins on Robinhood, Coinbase, Coinbase Pro, Gemini, or even ...
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3answers
604 views

If the "wallet seed keywords phrase" is all that's needed to restore a hardware Bitcoin wallet, isn't backing that up a nightmare security-wise?

I buy a Trezor. I put all my coins on it. It has me type out the "wallet seed", which is a series of English words in the right order, onto a paper. And maybe I even buy a metallic card ...
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1answer
104 views

Is my cold wallet still cold?

I created a new wallet.dat on a dedicated, secured machine with Bitcoin Core. Then I encrypted it. Then I sent my "fortune" of coins to it. Then I backed the file up by putting it on all my ...
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Reuse air gapped Raspi used for seed generation?

Would it be wise for an air gapped RasPi used for seed generation be used again online with a new micro SD card? Am i missing anything?
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318 views

What is the best way to generate bitcoin wallet?

I am trying to create a cold storage, and I'm becoming so paranoid about everything on software and hardware (also afraid of myself forgetting/losing the wallet) related to the setup. I have read some ...
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1answer
143 views

Blockstream Green Wallet Security

I am trying to understand how secure the green wallet is. I thought of a few scenarios where my funds might be in danger: If GreenAddress service becomes unavailable, they have a nlocktime ...
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1answer
109 views

As the Bitcoin price skyrockets, how to avoid getting malware through freeware/FOSS software's updates?

We have a situation now where the vast majority of software I have installed on my computer (Windows 10, since there are no other supported versions of Windows) are either aging one-man freeware ...
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2answers
107 views

Can you really trust a non-open-source desktop wallet?

I am a newbie in the crypto markets, but as a software engineer, it seems to me that a huge security vulnerability could be choosing a wrong wallet. If you are using a hot wallet, and can't see the ...
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4answers
6k views

What are the risks of using Strongcoin.com as an online wallet?

Strongcoin claims it is "The Safest way to store your Bitcoins. The only Bitcoin e-wallet service that's not vulnerable to security breaches. Your Bitcoin keys are encrypted in the browser." ...
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0answers
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How to generate a very secure wallet with Electrum?

For a poor-mans glacier protocol, looking for: One private key – an alphanumeric string used to secure the funds The cold storage address – an alphanumeric string designating the virtual “location” of ...
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1answer
163 views

My Bitcoin Core Sent Bitcoins Without My Authorisation

I am running Bitcoin Core version v0.19.0.1 (64-bit) on Windows 7, and on 27 February I noticed that it sent 0.0045 bitcoins on its own. The wallet is encrypted at all times and I enter the ...
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56 views

Can you think of a safe way to safely keep my "spendable" Bitcoin in my situation?

I have my "cold stash" wallet.dat on multiple fully offline, encrypted hard disks/sticks inside a fireproof safe. I never seriously considered printing them onto paper because that would be ...
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1answer
112 views

Are all 'metal wallets' functionally equivalent?

Within the context of wallets, is it correct that a metal bitcoin wallet needs to store both public and private keys? I'm looking at some metal wallets and want to clarify that the're all basically ...
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236 views

Starting bitcoind for the express purpose of creating a wallet?

Referencing this solution: My favorite method: grab out a old/unused pc/mac install a linux over usb (maybe Talis) (make sure your USB stick is clean!) download a recent version of bitcoin-core (...
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1answer
72 views

What needs to be written down for a paper wallet?

I'm installing bitcoin-core with snap on Ubuntu for a dry-run at generating a paper wallet. Perhaps naively, I thought to "write down" something like: nicholas@mordor:~/bitcoin$ nicholas@...