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Bitcoin Thefts Surge, DDoS Hackers Take Millions
CowboyRobot writes "In November, Denmark-based Bitcoin Internet Payment System suffered a DDoS attack. Unfortunately for users of the company's free online wallets for storing bitcoins, the DDoS attack was merely a smokescreen for a digital heist that quickly drained numerous wallets, netting the attackers a reported 1,295 bitcoins — worth nearly $1 million — and leaving wallet users with little chance that they'd ever see their money again. Given the potential spoils from a successful online heist, related attacks are becoming more common. But not all bitcoin heists have been executed via hack attacks or malware. For example, a China-based bitcoin exchange called GBL launched in May. Almost 1,000 people used the service to deposit bitcoins worth about $4.1 million. But the exchange was revealed to be an elaborate scam after whoever launched the site shut it down on October 26 and absconded with the funds. The warnings are all the same: 'Don't trust any online wallet', 'Find alternative storage solutions as soon as possible', and 'You don't have to keep your Bitcoins online with someone else. You can store your Bitcoins yourself, encrypted and offline.'"
Somebody more familiar with bitcoin can answer this for me, undoubtedly, but based on my limited understanding, if the wallet file is lost or destroyed, the coins within it are effectively gone, correct? If so, then at some point there's an expected loss over time (fraction of the population who don't back up their wallet, expected size of wallet, drive failure rate), and at some point that's going to intersect with the size at which the pool expands, so that the total supply of bitcoins over time actually decreases. Theoretically, we'd hit some point where bitcoins are just being destroyed through loss. The situation will be exacerbated with thefts and personal storage.
Yep, that's correct. Bitcoin is designed to be ridiculously scarce in the long run.
... and use a VM just for that purpose. Since I do IT I have a copy of VMware workstation and will utilize this for just that purpose to play it safe.
I have one for porn and one I am going to make for litecoin trading as bitcoin is too expensive already :-(
Firefox and Chrome with flash can get you just as infected as IE under Windows in this day and age so any browser is bad. A VM is the only way to stay safe sadly.
http://saveie6.com/
If you are really paranoid, you can use whonix, which puts a vm in a vm, piping everything through tor and preventing just about any leak of IP information or exposure of OS exploits.
Silence is a state of mime.
Actually it is idiots that keep all their savings in their own wallets, or in paper bag in the freezer, or buried in the yard. Whereas normal people do entrust their saving to complete strangers, all the time, in a thing called a "bank." This turns out to be much safer than holding it yourself, thanks to "regulations" enforced by "governments." Kind of impressive if you step back and think about it.
Interestingly enough, a lot of the small/medium businesses I work with that do business internationally have the exact same concerns with international currencies. (Dollar, Yen, Euro, Pound are accepted as safe... but even a currency as significant as Renminbi makes some people skittish.)
We don't need to know the rate of pool expansion. We already know that there is an upper limit to the number of available coins. When that limit is reached we will only lose bitcoins due to the exact reasons the GP raised.
So your "obligatory xkcd" is not appropriate at all. Back to your drawing board.
The effect of selling is less than you think.
mtgox is not the biggest exchange, but it can easily do a $1M exchange without affecting price in a too dramatic way.
The nice thing is that their bid book is open for every one to see, so you can predict what happens to price at large orders.
See: http://mtgoxlive.com/orders
At the time of writing, a $1M sell or buy would move the mtgox exchange price 5% in either direction.
If you sell in the largest exchange in the world, which I understand is in China, it would move the market less than this.
Bram Stolk http://stolk.org/tlctc/
If you can sell them for $1 million, then by definition they are worth $1 million.
It seems pretty simple on the surface but it's actually not. The point that the GP post was trying to make is that in a small or illiquid market, large sales volumes can actually depress prices by introducing too much inventory to sell vs. people willing to buy. This is a somewhat different example, but back in the day when Bill Gates still had a meaningful percentage of all Microsoft's shares, he would be said in the media to be worth "[his share total] x [current MSFT quote]." But people who knew the market actually understood that if he ever decided to liquidate his shares all at once they would be worth far less because he would actually flood the market (leaving aside the fact that if people figured out that Bill Gates was selling all his MSFT shares, they would flee the stock in droves assuming he knew something they didn't.)
So long story short - if I have a trivial number of [shares, rare items, whatever] compared to the market size, then, yes, they are worth [quantity] x [going price]. But if I have a quantity that is significant to the size of the ability to make markets and I try to sell it all at once, it will invariably be worth far less.
"95% of all Slashdot
You can't divide it infinitely.
Yes, you can. Eight decimal places is just a fairly arbitrary number. If it becomes necessary, smaller transaction can be supported.
If there's a way to reclaim lost bitcoins (crack the encryption), then you can get a stability point.
The public keys and contents of all addresses that have been involved in transactions are public knowledge through the blockchain.
If someone cracks the encryption, no bitcoin is safe from theft any more not even those stored on paper locked in a safe.
But I guess a value of zero is a stability point too.