On Monday morning, a user called allinvain posted a message to a bitcoin forum. It began:
Hi everyone. I am totally devastated today. I just woke up to see a very large chunk of my bitcoin balance gone ...
Bitcoin is decentralized — there's no company or nonprofit that runs it. But Ars Technica spoke with Gavin Andresen, a developer who has contributed to the bitcoin project.
Andresen said that it would be difficult to confirm the authenticity of the report. ... "[I]f someone wanted to claim they lost a bunch of bitcoins, they could claim that any transaction on the network belonged to them."
Still, the kind of attack described in the post is certainly possible. Andresen says he always emphasizes that Bitcoin is an experiment, and not (yet) for the faint of heart. "Unfortunately, this is an expensive test case for the guy who lost the Bitcoins," he said.
Andresen says that in the long term, bitcoin will figure out a technical fix that makes this kind of thing unlikely.
For now, bitcoin users worried about getting ripped off can store their bitcoins with wallet service companies. But, as Ars Technica points out, a key selling point of bitcoin is that it allows people to buy and sell stuff without going through intermediaries. So storing your bitcoins with a third party sort of defeats the point.
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