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Topic: Wallets and Cold Storage. (Read 1834 times)

legendary
Activity: 1456
Merit: 1000
January 15, 2016, 09:42:04 PM
#36
Then my suggestion would be to get a Ledger HW.1. It doesn't rely on Ledger the company to work. It's a USB stick, sort of. You can pick one up from Purse for $15, I paid in Bitcoin, and they shipped me mine for free. I have a review of one on my website. Check it out.

The Ledger Nano is also a option if wanting one still in a area not to expensive.   I have did a hands on with it - https://bitcointalksearch.org/topic/hands-on-ledger-nano-hardware-wallet-notlist3d-1305888

So far have used KeepKey, Trezor, Ledger Nano.  I have lots of good things to say about using hardware wallets if done right.
full member
Activity: 126
Merit: 100
January 15, 2016, 07:21:19 AM
#35
You can try to store them on paper wallets.
It is a safely method.
member
Activity: 74
Merit: 10
January 03, 2016, 01:29:46 AM
#34
Then my suggestion would be to get a Ledger HW.1. It doesn't rely on Ledger the company to work. It's a USB stick, sort of. You can pick one up from Purse for $15, I paid in Bitcoin, and they shipped me mine for free. I have a review of one on my website. Check it out.
newbie
Activity: 42
Merit: 0
January 03, 2016, 01:26:15 AM
#33
That's not a bad plan at all. I have three levels of storage, actually. The bulk of it is kept in a hardware wallet that I keep in a safe. I have a small amount in a mobile wallet that I use from day to day. I also have some in a mobile wallet that is locked with another hardware wallet. One thing I love about Bitcoin is that you can make it work for you. If you need some help, don't be afraid to ask.

Thanks I appreciate that. I did read your tutorial on creating offline addresses. I've always heard people talk about that, but it's good see the steps involved in it. I will definitely be giving that a try tomorrow  Grin

I've also looked into hardware wallets. I think I will probably use something like a USB memory stick. I really like the devices like the Trezor, but my main worry if is I store something like the Trezor away for a few years and it decides not to work and Trezor goes out of business I could potentially use a lot of money.
member
Activity: 74
Merit: 10
January 03, 2016, 12:34:09 AM
#32
That's not a bad plan at all. I have three levels of storage, actually. The bulk of it is kept in a hardware wallet that I keep in a safe. I have a small amount in a mobile wallet that I use from day to day. I also have some in a mobile wallet that is locked with another hardware wallet. One thing I love about Bitcoin is that you can make it work for you. If you need some help, don't be afraid to ask.
newbie
Activity: 42
Merit: 0
January 02, 2016, 10:09:32 PM
#31
That's correct. If you don't solely hold the private keys, you aren't the sole owner of the Bitcoin. I do honestly recommend that people start out on Coinbase or Circle just to reduce the number of variables and get used to buying, selling, and using Bitcoin. But for security and long term storage there are much better ways. If you're new, you could check out my tutorials at my website. It's fairly new and certainly not done, but you may find a place to start.

Awesome! I will definitely check it out. I want to store and save coins in hopes to make money which is what I will be putting in cold storage, but I would also like to keep a small amount in a wallet and maybe even in coinbase to make online transactions and do other things with my btc. It would be such a small amount that if I lost it or it was stolen I would be too upset about it. I would just chalk it up to learning experience.
member
Activity: 74
Merit: 10
January 02, 2016, 09:13:46 PM
#30
That's correct. If you don't solely hold the private keys, you aren't the sole owner of the Bitcoin. I do honestly recommend that people start out on Coinbase or Circle just to reduce the number of variables and get used to buying, selling, and using Bitcoin. But for security and long term storage there are much better ways. If you're new, you could check out my tutorials at my website. It's fairly new and certainly not done, but you may find a place to start.
newbie
Activity: 42
Merit: 0
January 02, 2016, 08:46:44 PM
#29
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.

Wait.. So if I am reading this correctly, if I exchange cash for bitcoin through coin base it has to stay in coinbase? I couldn't send the coins to another wallet that I have?

Coinbase does not give you a private key for address you use on it's site.  So if you leave it on the site you cannot use private key and import it into another wallet.  They do this for safety as a lot that use it are pretty new I think.

But with a lot of other options you have either seed words, or private key that you could use to import address into a different wallet.   I like ones where I have the private key.  I mostly use hardware wallets which keep it on it, and give seed word's to backup.  And paper wallets which are cold and not touched.

Ahh ok I got you. So, since they don't give you private keys technically anyone at Coinbase could have access to your coins if you let them sit there, correct?
full member
Activity: 131
Merit: 100
January 02, 2016, 08:46:20 PM
#28
Forget getting a wallet from one of the locations you have mentioned.  Just transfer your bitcoin to a offline computer storage of some sort.  if you have an old cell phone that does not get any service, only wifi, transfer it to that.  I would not recommend storage such as a paper wallet, but also do not announce that the addresses you are going to be storing.  Just my opinions. 
newbie
Activity: 42
Merit: 0
January 02, 2016, 08:40:39 PM
#27
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.

Wait.. So if I am reading this correctly, if I exchange cash for bitcoin through coin base it has to stay in coinbase? I couldn't send the coins to another wallet that I have?

Yes, you can purchase coins on Coinbase and send them to another wallet. They don't keep your coins forever. You don't have to worry about anything. I made large purchases on coinbase and transfer my coins over to my wallet on my computer. Grin
*As stated, you shouldn't keep your coins on an exchange, no matter which one for a long time for security issues. I always feel safer holding my coins, my personal opinion.

Ok cool. I don't know why I kept reading that wrong. Might just be a long day and my processing is down to zilch haha.
legendary
Activity: 1456
Merit: 1000
January 02, 2016, 07:51:18 PM
#26
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.

Wait.. So if I am reading this correctly, if I exchange cash for bitcoin through coin base it has to stay in coinbase? I couldn't send the coins to another wallet that I have?

Coinbase does not give you a private key for address you use on it's site.  So if you leave it on the site you cannot use private key and import it into another wallet.  They do this for safety as a lot that use it are pretty new I think.

But with a lot of other options you have either seed words, or private key that you could use to import address into a different wallet.   I like ones where I have the private key.  I mostly use hardware wallets which keep it on it, and give seed word's to backup.  And paper wallets which are cold and not touched.
newbie
Activity: 14
Merit: 0
January 02, 2016, 06:41:44 PM
#25
Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

I completely disagree. Coinbase has had lots of security vulnerabilities in the past that were disclosed to them. In almost all cases they either failed to properly fix the issues and/or pay those who reported them. Some hackers who weren't paid said that in future they would not be disclosing any issues to coinbase and would use the issues to steal the BTC because they won't pay them. They have been very lucky because they could've been cleaned out many times in the past but the hackers didn't do it thinking that coinbase would give them a reward instead, but coinbase rarely did that even though they have made promises to do so.

About the insurance, BitPay also had insurance and when they were hacked for $1.8 million the insurance company didn't pay out due to a technicality. So you can't really count on that.

http://seclists.org/fulldisclosure/2014/Dec/28

http://www.newsbtc.com/2015/12/21/unbelievable-bitcoin-exchange-coinbase-bans-user-who-helped-saved-millions/

http://www.newsbtc.com/2015/12/22/bitcoin-exchange-coinbase-comes-clean-on-bounty-controversy

http://www.coindesk.com/bitpay-sues-insurer-after-losing-1-8-million-in-phishing-attack/

hero member
Activity: 588
Merit: 500
January 02, 2016, 06:17:45 PM
#24
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.

Wait.. So if I am reading this correctly, if I exchange cash for bitcoin through coin base it has to stay in coinbase? I couldn't send the coins to another wallet that I have?

Yes, you can purchase coins on Coinbase and send them to another wallet. They don't keep your coins forever. You don't have to worry about anything. I made large purchases on coinbase and transfer my coins over to my wallet on my computer. Grin
*As stated, you shouldn't keep your coins on an exchange, no matter which one for a long time for security issues. I always feel safer holding my coins, my personal opinion.
newbie
Activity: 42
Merit: 0
January 02, 2016, 06:08:09 PM
#23
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.

Wait.. So if I am reading this correctly, if I exchange cash for bitcoin through coin base it has to stay in coinbase? I couldn't send the coins to another wallet that I have?
legendary
Activity: 1456
Merit: 1000
January 02, 2016, 01:58:23 PM
#22
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?

Coinbase is very safe, they even have insurance that should protect investment if big site hack (it does not protect individual account's though if lost do to you).  So it has that with Mt Gox never had.

Only problem with it is you have 0 control outside of coinbase.  You won't get a paper wallet or private key you can enter into a different wallet and use your holdings.  Your stuck there if there is any problems.
member
Activity: 78
Merit: 10
January 02, 2016, 12:47:50 PM
#21
How safe is it to store bitcoins on a place like coinbase? I know mt gox went down is it likely something like that could happen to other exchanges?
newbie
Activity: 14
Merit: 0
December 30, 2015, 06:16:41 AM
#20
Your talking in theatricals.  It is kinda non-sense your computer has chips.. your printer has chips.. are they all set with backdoor?   You can go on and on with it.... at end of day there has not been a hardware wallet with a backdoor (to my knowledge).  Can you point to so meting that shows a modern hardware wallet with a security flaw this big?   Do you have anything hard proof not theoretical?  And which hardware wallets have you used?

And I'm not saying paper does not have a place if your planning on leaving it cold for long period of time and not using it, if done right paper is great.  I just don't like to use you have to import into wallet.  On hardware I like that if you need use it signs transactions on the device huge pro if you need to access it.  But if you are putting it away for the next year or so paper wallet is great for you.

theoreticals* and hardware hacking is not theory, its been done just not in the Bitcoin space yet... as far as we know.

Right but which is more likely to have Bitcoin stealing malware, a chip in a Dell PC or a chip in a device designed to store bitcoins? I would think that the hardware wallets are the ones most likely to be targeted by this sort of thing. Also hardware wallets are much simpler devices which makes this sort of thing a bit easier.

If there was a hardware wallet with a backdoor it would be unlikely anyone would have found it. I don't think there are many publicly known techniques for detecting this sort of thing other than dipping the chip in acid and using an electron microscope. Certainly there have been many Bitcoins stolen from hardware wallets where the owners claim not to know why but its more likely those thefts were due to user error rather than a backdoor. What is certain is that hackers will try this as there are many hackers out there capable of these kinds of attacks and the incentive is definitely there. You must trust the manufacturer of any computer you use to store Bitcoins, whether it be a general purpose PC or a hardware wallet. If you use a hardware wallet you are still putting significant trust into the hands of the manufacturer and anyone who tries to say otherwise is completely wrong.
newbie
Activity: 42
Merit: 0
December 30, 2015, 06:15:42 AM
#19
After studying bitcoin for the past few months and collecting Lealana and Casascius coins I'm ready to buy some actual bitcoins. I've been looking into exchanges and made a thread about it.
That is some weird order, anyway, good way now. Owning actual bitcoins is essential for learning about bitcoins and more.

Yea, it might be a little unorthodox, but I really want to get all my ducks in a row before just running out and getting btc and losing them due to a rookie mistake.
legendary
Activity: 1456
Merit: 1000
December 30, 2015, 06:03:54 AM
#18
You need to read a little more before giving advice.  TREZOR is opensource so you can read the code if you like, to see no back door.   The code is so good at least another wallet uses TREZOR's code.

And yes it is tamper proof on TREZOR's case.  The big thing though which stops your idea on employee or someone getting wallet, is it's shipped as empty it's not till you actually go through install it has a wallet.  You get 24 seed words that only you know during install.  So until you install it literally contains no wallet.  

Have you used a hardware wallet?

Here is some real hands on with some hardware wallets:
Trezor: https://bitcointalksearch.org/topic/hands-on-trezor-hardware-wallet-notlist3d-1298917
KeepKey: https://bitcointalksearch.org/topic/hands-on-keepkey-hardware-wallet-notlist3d-1283805
Ledger Nano: https://bitcointalksearch.org/topic/hands-on-ledger-nano-hardware-wallet-notlist3d-1305888

Actually you are the one who needs to do more research. Yes you are right the software that runs on it is mostly open source (no hardware wallet released so far is actually 100% open source, some have 99% of the code open source like the trezor but most don't have any part of the hardware open sourced, none of the ones you have linked are 100% code and hardware open source), however there are still many other worries. One thing that scares me a lot is that trezor hard an onboard RNG chip that is not open source and was completely designed and manufactured by a third party vendor, however it doesn't use this chip exclusively it combines it with random data from your PC so unless both are colluding you are safe. First of all unless you actually build the software from source and load it onto the device yourself how can you know what is running on it. How do you know that the device hasn't got some extra code that generates non random seed words, or even more hard to detect - non random R values, similar to the bug in blockchain.info before, or even code that transmits the seed words hidden in inside the tx data allowing the attacker to retrieve them from the blockchain after you push a tx. Even if you do load the code yourself it is still possible that some chip on the device is the thing that is backdoored and able to execute these kinds of attacks, this is called "hardware hacking". This is near impossible to detect. The US military has invested billions into trying to solve this problem and are able to detect backdoored chips by destructive testing by means that are not yet public however we do know that the chip is useless afterwards, so when they need to source chips from China or such they buy lots of chips and destroy 80% of them and if they find no backdoors they decide the remaining 20% are safe enough and those are the ones that end up in black hawk helicopters and other important things. So tl;dr; It is really hard to be sure your hardware wallet isn't backdoored. Unless you build it from bare silicon yourself there is trust involved.

Your talking in theatricals.  It is kinda non-sense your computer has chips.. your printer has chips.. are they all set with backdoor?   You can go on and on with it.... at end of day there has not been a hardware wallet with a backdoor (to my knowledge).  Can you point to so meting that shows a modern hardware wallet with a security flaw this big?   Do you have anything hard proof not theoretical?  And which hardware wallets have you used?

And I'm not saying paper does not have a place if your planning on leaving it cold for long period of time and not using it, if done right paper is great.  I just don't like to use you have to import into wallet.  On hardware I like that if you need use it signs transactions on the device huge pro if you need to access it.  But if you are putting it away for the next year or so paper wallet is great for you.
legendary
Activity: 2296
Merit: 1014
December 30, 2015, 04:40:21 AM
#17
After studying bitcoin for the past few months and collecting Lealana and Casascius coins I'm ready to buy some actual bitcoins. I've been looking into exchanges and made a thread about it.
That is some weird order, anyway, good way now. Owning actual bitcoins is essential for learning about bitcoins and more.
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