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saythatagain



Registered: 04/11/15
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My bitcoins were stolen
#25594649 - 11/05/18 07:08 PM (5 years, 6 months ago) |
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And I'm not sure how. The day before it happened I deposited about $200 into a bitcoin ATM and purchased about .0283 BTC. The next day I sent .01578 BTC as payment. According to the blockchain, the remainder of my balance was sent to another address at the same time. I'm confused, angry, and a little scared. I run arch linux so malware seems unlikely. I torrent lots of movies so if I do have a keylogger or some trojan, I assume that's where it came from. It was an online wallet at coinfy.com. Any advice/comments are welcome. I really don't want to wipe my PC but that's the next step. I've changed all my passwords.
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sh4d0ws
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Registered: 02/26/08
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It's could just be a change address, depending on what kind of wallet you used
What wallet did you use to send bitcoin?
Sorry, I missed the wallet part. Have you checked your balance showing on coinify? And it's not appearing there either? There's both change addresses and also ways internal web wallets may function that could have moved that coin to a different address when spending the other coin, but it may still be in your possession
Hope that isn't confusing as fuck, lol
Edited by sh4d0ws (11/05/18 09:00 PM)
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saythatagain



Registered: 04/11/15
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Re: My bitcoins were stolen [Re: sh4d0ws]
#25594877 - 11/05/18 09:13 PM (5 years, 6 months ago) |
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It’s midly confusing but I certainly appreciate the reply. I’ll get a screenshot later but coinfy shows my balance is 0.
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saythatagain



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Re: My bitcoins were stolen [Re: sh4d0ws]
#25595066 - 11/05/18 11:25 PM (5 years, 6 months ago) |
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Edited by saythatagain (11/05/18 11:26 PM)
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paradoxlost
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If it's an online wallet I would contact their customer service. Online wallets are not located on your hard drive so the malware/vulnerability is most likely on their end. Also seeing how during the transaction stimulated by your credentials simply piggy backed the remainder of your wallet balance into a different wallet I would say that the vulnerability is on their end, not yours, and every single one of their users is getting their wallets cleaned out.
-------------------- [quote]koods said: Asante, I don’t think we should have any sympathy and should celebrate the deaths of antivax/antimask activists. They are responsible for far more American deaths than al Qaeda ever was. Every time one of them dies ther movement of death is weakened.ut[/quote] [quote]koods said: Chasing variants with vaccines is a dumb idea[/quote]
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saythatagain



Registered: 04/11/15
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Quote:
paradoxlost said: If it's an online wallet I would contact their customer service. Online wallets are not located on your hard drive so the malware/vulnerability is most likely on their end. Also seeing how during the transaction stimulated by your credentials simply piggy backed the remainder of your wallet balance into a different wallet I would say that the vulnerability is on their end, not yours, and every single one of their users is getting their wallets cleaned out.
But if there is a keylogger on my computer it could have recorded my passphrase and sent it to the thief.
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Yrat
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if your btc were stolen they would have been sent in a separate transaction. what you have seen is normal for a transaction on the btc blockchain, there should be two outputs to every transaction. you should still have access to those btc through the wallet software, where the btc remain at a different address. the original wallet should have a balance of zero but i'm willing to bet you still have access to the remainder somewhere that you are missing.
-------------------- "There are a thousand hacking at the branches of evil to one who is striking at the root." -Henry David Thoreau Strike The Root
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paradoxlost
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Quote:
saythatagain said:
Quote:
paradoxlost said: If it's an online wallet I would contact their customer service. Online wallets are not located on your hard drive so the malware/vulnerability is most likely on their end. Also seeing how during the transaction stimulated by your credentials simply piggy backed the remainder of your wallet balance into a different wallet I would say that the vulnerability is on their end, not yours, and every single one of their users is getting their wallets cleaned out.
But if there is a keylogger on my computer it could have recorded my passphrase and sent it to the thief.
Yea in which case a seperate transaction would have been generated. Here it seems like in one transaction you sent an amount to one wallet and the remainder to another wallet. It seems like your password being compromised is the least of their worries. The framework of the wallet seems to have been compromised.
-------------------- [quote]koods said: Asante, I don’t think we should have any sympathy and should celebrate the deaths of antivax/antimask activists. They are responsible for far more American deaths than al Qaeda ever was. Every time one of them dies ther movement of death is weakened.ut[/quote] [quote]koods said: Chasing variants with vaccines is a dumb idea[/quote]
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sh4d0ws
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Re: My bitcoins were stolen [Re: Yrat]
#25597645 - 11/07/18 01:54 AM (5 years, 6 months ago) |
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Quote:
Yrat said: if your btc were stolen they would have been sent in a separate transaction. what you have seen is normal for a transaction on the btc blockchain, there should be two outputs to every transaction. you should still have access to those btc through the wallet software, where the btc remain at a different address. the original wallet should have a balance of zero but i'm willing to bet you still have access to the remainder somewhere that you are missing.
This is what I was talking about basically. A change address is the output where your "Change" gets sent. (your full balance has to be sent everytime, if you don't spend all the balance to one person, the output containing the rest of your coin will be sent to a "change" address. This address would be controlled by you.
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paradoxlost
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Re: My bitcoins were stolen [Re: sh4d0ws]
#25597800 - 11/07/18 05:40 AM (5 years, 6 months ago) |
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Quote:
sh4d0ws said:
Quote:
Yrat said: if your btc were stolen they would have been sent in a separate transaction. what you have seen is normal for a transaction on the btc blockchain, there should be two outputs to every transaction. you should still have access to those btc through the wallet software, where the btc remain at a different address. the original wallet should have a balance of zero but i'm willing to blet you still have access to the remainder somewhere that you are missing.[t/quote]
This is what I was talking about basically. A change address is the output where your "Change" gets sent. (your full balance has to be sent everytime, if you don't spend all the balance to one person, the output containing the rest of your coin will be sent to a "change" address. This address would be controlled by you.
this is not a normal blockchain feature. I have never had to send 100% of my wallet in any of my transactions.
-------------------- [quote]koods said: Asante, I don’t think we should have any sympathy and should celebrate the deaths of antivax/antimask activists. They are responsible for far more American deaths than al Qaeda ever was. Every time one of them dies ther movement of death is weakened.ut[/quote] [quote]koods said: Chasing variants with vaccines is a dumb idea[/quote]
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saythatagain



Registered: 04/11/15
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Re: My bitcoins were stolen [Re: sh4d0ws]
#25598045 - 11/07/18 08:31 AM (5 years, 6 months ago) |
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So where do I find the rest of my coin?
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paradoxlost
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I mean if you don't have access to the wallet that is in the second part of the transaction. I have no idea what those other posters are talking about, but I would contact the customer service of the wallet service.
-------------------- [quote]koods said: Asante, I don’t think we should have any sympathy and should celebrate the deaths of antivax/antimask activists. They are responsible for far more American deaths than al Qaeda ever was. Every time one of them dies ther movement of death is weakened.ut[/quote] [quote]koods said: Chasing variants with vaccines is a dumb idea[/quote]
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saythatagain



Registered: 04/11/15
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Turns out they weren't stolen. Apparently I'm just a BTC noob. They're at a different address in the same wallet.
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Yrat
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glad you found your access. this is how the btc blockchain works.
-------------------- "There are a thousand hacking at the branches of evil to one who is striking at the root." -Henry David Thoreau Strike The Root
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sh4d0ws
LSx


Registered: 02/26/08
Posts: 12,086
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Quote:
paradoxlost said:
Quote:
sh4d0ws said:
Quote:
Yrat said: if your btc were stolen they would have been sent in a separate transaction. what you have seen is normal for a transaction on the btc blockchain, there should be two outputs to every transaction. you should still have access to those btc through the wallet software, where the btc remain at a different address. the original wallet should have a balance of zero but i'm willing to blet you still have access to the remainder somewhere that you are missing.
This is what I was talking about basically. A change address is the output where your "Change" gets sent. (your full balance has to be sent everytime, if you don't spend all the balance to one person, the output containing the rest of your coin will be sent to a "change" address. This address would be controlled by you.
this is not a normal blockchain feature. I have never had to send 100% of my wallet in any of my transactions.
Just because the wallet you're using isn't displaying it to you (because most people just get confused), "change" addresses are there.
It is in fact a very specific part of the way that bitcoin functions.
https://en.bitcoin.it/wiki/Change
Quote:
That is exactly how bitcoin works. Except instead of bills we call the elements inputs and outputs. When you "spend" bitcoins (create a transaction) you must use the entire value of an unspent output (of a prior transaction) and make it the input for a new transaction. Your wallet hides this somewhat by continually looking for unspent outputs and adding up their total value. So when your wallet says you have 130 BTC it simply means the sum of all your unspent outputs total 130 BTC. Just like a fiat wallet the value comes from one or more discrete bills/outputs.
example on a block chain explorer
https://www.blockchain.com/btc/tx/0a1c0b1ec0ac55a45b1555202daf2e08419648096f5bcc4267898d420dffef87
Now if you have sent bitcoins to different addresses in your wallet (or it is doing it on the back end and not displaying it to you) then you don't actually need to spend ALL of the bitcoin in that wallet to send a transaction, just the full output going to one of your addresses.
If you spend all your bitcoins in one go, then no change address because there is no need for a 2nd output. It makes it seem confusing but really these coins go directly back to your wallet.
I'm probably just confusing ya'll  . But this is what happened to the OP
Edited by sh4d0ws (11/10/18 05:20 AM)
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Amanita86
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Re: My bitcoins were stolen [Re: sh4d0ws]
#25604635 - 11/10/18 06:11 AM (5 years, 6 months ago) |
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What’s the best, current, easy how to for btc? It makes my brain cramp for some reason.
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saythatagain



Registered: 04/11/15
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Re: My bitcoins were stolen [Re: Amanita86]
#25605002 - 11/10/18 09:35 AM (5 years, 6 months ago) |
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Thanks for the help everyone.
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