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Author Topic: Blockchain safe?  (Read 901 times)
SouthernComfort (OP)
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December 30, 2012, 05:34:53 PM
 #1

Hello, I have quite a few Bitcoins in the web client Blockchain. I know a lot of people use it, but i was wondering how safe is it really?
Thursday
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December 30, 2012, 08:00:58 PM
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Hello, I have quite a few Bitcoins in the web client Blockchain. I know a lot of people use it, but i was wondering how safe is it really?

Welcome,

The problem with your question is the subjective nature of the terms "quite a few", and "safe".  I use Blockchain and believe it is 'safe' but I only ever put a 'few' coins in it. Grin

What are your plans with the coins?

Regardless I suggest you look in to an offline paper wallet using a live boot.  There should be no doubt your coins are secure, especially if you refer to them as quite a few.

Lots of good info on the Wiki:

https://en.bitcoin.it/wiki/Main_Page

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SouthernComfort (OP)
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December 30, 2012, 08:06:56 PM
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I have about 2000$ worth of Bitcoins in Blockchain. Im worried about using wallets because I've heard stories of hackers braking into them..
DannyHamilton
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December 30, 2012, 08:19:08 PM
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    Nothing in life is 100% safe. So when you ask if it is "safe", what you really need to do is understand as much as you can about the various risks associated with each of your options, and then choose the option with the risks you can accept.

    Examples of some of the potential risk with blockchain.info:
  • If you never backup your wallet, and blockchain.info disappears, you won't have a way to access your bitcoins ever again.
  • If you forget your password you won't have a way to access your coins ever again
  • If a hacker gets into your computer and gets your password when you type it, they can access your bitcoins and take them
  • If someone looks over your shoulder while you type your password, they can use that information to take your bitcoins
  • If you use a simple enough password for someone to guess it or crack it with a dictionary attack or brute force attack and someone gains access to your wallet, they can take your bitcoins.
  • If someone threatens you (or anyone else you've given access to your bitcoins), they can force you to give away your bitcoins.
  • If you use the alerts feature on blockchain.info, then they have some personally identifying information about you.  If they change their policy (or violate their policy) in the future that information could be made pubilc against your wishes
  • If you write down your password, and someone finds it, they may take your bitcoins.
Thursday
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December 30, 2012, 08:30:26 PM
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I have about 2000$ worth of Bitcoins in Blockchain. Im worried about using wallets because I've heard stories of hackers braking into them..

What do you plan to do with the coins?

Setup an offline savings wallet as I stated before.

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21after2
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December 30, 2012, 08:35:40 PM
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I wouldn't keep that large of an amount of BTC in any online wallet. I would use a site like bitaddress to make an offline paper wallet to store any BTC that's not currently being used.

I use the Blockchain app for transactions and I feel perfectly safe doing that, but I've never had more than $100 worth of BTC on it at a time. It's good if you're on the go or making sales, but not as a "savings" wallet.
ThomasV
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December 30, 2012, 08:39:59 PM
 #7

please rename this thread, the title is confusing.
your question is about the website blockchain.info (which could indeed be hacked), not about the Bitcoin blockchain (which is safe).

Electrum: the convenience of a web wallet, without the risks
djohnston
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December 31, 2012, 07:43:16 AM
 #8

Southern Comfort,

Did you check out the Newbie Section post about "No Trusting Anyone" there was a good link in their to "Securing Your Wallet". See below. I hope that helps.

If you want to store your bitcoins with maximum security, there are lots of resources about how to do it, such as this: https://en.bitcoin.it/wiki/Securing_your_wallet

-DJohnston

“The state is that great fiction by which everyone tries to live at the expense of everyone else.” ― Frédéric Bastiat
SouthernComfort (OP)
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December 31, 2012, 06:21:41 PM
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Quote
Examples of some of the potential risk with blockchain.info:
  • If you never backup your wallet, and blockchain.info disappears, you won't have a way to access your bitcoins ever again.
  • If you forget your password you won't have a way to access your coins ever again
  • If a hacker gets into your computer and gets your password when you type it, they can access your bitcoins and take them
  • If someone looks over your shoulder while you type your password, they can use that information to take your bitcoins
  • If you use a simple enough password for someone to guess it or crack it with a dictionary attack or brute force attack and someone gains access to your wallet, they can take your bitcoins.
  • If someone threatens you (or anyone else you've given access to your bitcoins), they can force you to give away your bitcoins.
  • If you use the alerts feature on blockchain.info, then they have some personally identifying information about you.  If they change their policy (or violate their policy) in the future that information could be made pubilc against your wishes
  • If you write down your password, and someone finds it, they may take your bitcoins.

Thanks this cleared a lot of things up for me, I will be making a wallet just got to make sure im more careful with my downloads.
DannyHamilton
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December 31, 2012, 06:30:08 PM
 #10

Thanks this cleared a lot of things up for me, I will be making a wallet just got to make sure im more careful with my downloads.

I'm not sure what you mean when you say you "will be making a wallet".  If you mean you will be making a local wallet using a client such as Electrum, MultiBit, Bitcoin-QT, or Armory, then you should be aware that those wallets also each have their own issues regarding how "safe" they are.
BTC4Amazon
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December 31, 2012, 06:50:13 PM
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Thanks this cleared a lot of things up for me, I will be making a wallet just got to make sure im more careful with my downloads.

I'm not sure what you mean when you say you "will be making a wallet".  If you mean you will be making a local wallet using a client such as Electrum, MultiBit, Bitcoin-QT, or Armory, then you should be aware that those wallets also each have their own issues regarding how "safe" they are.


Send it to Armory and take armory offline...About as safe as you can get.
SouthernComfort (OP)
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December 31, 2012, 08:15:44 PM
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Quote
Send it to Armory and take armory offline...About as safe as you can get.

This is what I have done thanks
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