Bitcoin Stack Exchange
Bitcoin Stack Exchange

Questions tagged [wallet-security]

How to keep wallets safe.

Questions about keeping one's Bitcoin wallet safe. Most attacks that steal Bitcoins involve gaining access to a victims wallet.dat file and password.

Note that questions about attacks against the Bitcoin protocol itself would go under the tag.

183 questions
6
votes
1 answer

Alert Key Compromised, upgrade required

I just got this message: "Alert key compromised, upgrade required". How urgent is this? Am I in danger of losing my Bitcoin? What do I do?
dogbad
  • 61
  • 1
  • 1
  • 3
3
votes
1 answer

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/WalletGenerator.net) and ran offline. I imported the first…
Eagle1
  • 163
  • 5
2
votes
2 answers

How does crypto exchange secure private keys?

I'm wondering on what is the current common apporach that is used by centralized crypto exchange to secure the private keys of the bitcoin wallets
0xgoku
  • 121
  • 2
  • 6
2
votes
1 answer

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 realize randomly guessing private keys is unlikely.…
Lonnie Best
  • 203
  • 3
  • 7
1
vote
1 answer

Smart Phone vs Online Wallet/Vault

Is a smart phone wallet (i.e. Mycelium) safer than leaving BTC on an online exchange like Coinbase?
bangzoom
  • 31
  • 3
1
vote
1 answer

Different Wallets and ScriptSig does it help obfuscation?

my question is this if you have coins that you are looking to break an identity link (not using mixing services) does using multiple wallets if you send different amounts of bitcoin help obfuscate the funds etc so I have three HD Wallets i have 5…
BitcoinFantastic
  • 23
  • 2
1
vote
2 answers

I sent btc from my wallet to my web site balance, deposit never showed

I have had hundreds of confirmations but the funding never made it from my wallet to the balance I was maintaining on a Web site (Alhabay). On blockchain the transaction is listed as "unspent." Where did my funds go? Can I get them back? I've been…
user30888
  • 11
  • 2
0
votes
3 answers

How would you store a very large amount of crypto currency

I have Litecoin, Bitcoin, Ethereum and NEM. In recent times, I've become a very lucky boy indeed! I usually download and install the "official" wallets that download the entire blockchain but this is getting impossible now, especially for Ethereum…
user8511320
  • 23
  • 2
0
votes
1 answer

Isn't it safer to only encrypt the wallet, then back it up, and NOT save the seed?

If you use the seed, and it gets compromised, then you immediately lost all your coins. But if you only save the password safely, and backup the wallet file in several locations, then you gain a form of multi-factor authentication, because if the…
Pineapple29
  • 119
  • 6
0
votes
1 answer

Uncomfirmed Transaction

I sent 2.1439245 bitcoins to 1AEcB37MngXzuvailFr1f31qobvzBFXF4e9 on May 27 and the transaction has still not been received. I contacted the merchant that I bought from and they said that they have not received any bitcoins and I should claim for a…
Daniela
  • 1
0
votes
2 answers

Coins sent while wallet closed

I opened my wallet after almost a year and all of a sudden I see 2 transactions saying I sent coins to someone. The address it says I sent to is 1PAZw2aNgurapsxUVm8ctZDD76v7JiwQkC however I never sent this. So, if someone is stealing my coins how…
confused
  • 1
  • 2