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4
votes
2answers
622 views

Hacked my blockchain.info wallet, stole 760 coins

Two days ago my wallet at blockchain.info was hacked, everything was taken (760 coins). https://blockchain.info/tx/0619d221a761a3b8ec205773440fa6607d65957ef985dac5fb5273a08bda2c89 Besides the ...
1
vote
1answer
71 views

Compromised Bitcoin clients?

Are there any known cases of compromised Bitcoin clients (whether proprietary or free)? I don’t mean separate malware that attacks installed clients, but malware that is included in the client ...
0
votes
1answer
100 views

Measuring levels of hacker participation on the Bitcoin network

Is there any reliable way of estimating the number of black-hat hacker controlled miners? I was thinking about the common wisdom that BitCoin should have been implemented with a hashing mechanism ...
4
votes
1answer
547 views

If SHA256 and/or RIPEMD-160 were broken, would all bitcoin addresses be compromised?

If not, what else would be needed to steal all funds from all people and completely break bitcoin? I bet some will say ECSDA gives bitcoin an additional layer of protection. I counter this by saying ...
0
votes
0answers
58 views

How difficult is it to determine the owner of some bitcoins? [duplicate]

When Bitcoin was making the media waves back in 2011, a lot of it focused on the anonymity aspect of bitcoins, the hacks, and the illegal contents of the silk road onion address. From my limited ...
3
votes
1answer
325 views

How much Bitcoin was lost in the Jul. 2011 MyBitcoin site shutdown incident?

https://en.bitcoin.it/wiki/MyBitcoin How much money was lost when it shut down? (You can also edit the wiki page and add this info). Best estimates of course.
4
votes
1answer
228 views

What happened to my coins, hacked?

I'm new to bitcoin, downloaded the bitcoin.org client, encrypted my wallet, and purchase a few bitcoins (5.25), for learning purposes. But now my coins seem to have disappeared to an unknown address. ...
3
votes
2answers
171 views

What does the term “Longest chain” mean?

What does the term "Longest chain" mean, as there is only one 'right' blockchain exists? How another longer chain would make the 'right' chain invalid?
-1
votes
1answer
170 views

What's the story behind the Mitt Romney's tax return information blackmail

On the 6th of September, 2012 CNN reported that a hacker group got a hold of Mitt Romney's tax return information and demanded a ransom of 1 million dollars equivalent in bitcoins to be paid for not ...
2
votes
1answer
275 views

What user data has been leaked from MtGox's database during June 2011 hack?

What user data has been leaked from MtGox's database during the June 2011 hack? Is the database still available for download anywhere, like it was almost a year ago?
7
votes
1answer
251 views

What could be the impact of the distribution of “tainted” Bitcoinica coins?

The hacker was distributing them in IRC recently, and sent some to the Bitcoin Faucet. Is this a reliable method for evading the "Bitcoin Police"? Here's a forum thread discussing the distribution ...
2
votes
1answer
355 views

What is the story behind MyBitcoin?

The name of MyBitcoin eWallet comes up quite often here and there. What is the story behind it and the attack on it they claimed occurred?