0940 uhr studie bitcoinkurs unterliegt manipulation von tradern
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We hope you understand, and consider subscribing for unlimited online access. For the currency to gain large-scale popularity, it may need to create or work with financial institutions—making Bitcoin less distinct from the conventional currencies some users hope to supplant.
To use Bitcoin, a person downloads the official software client, which connects over the Internet to a global network of other copies of the program. That official client stores the security needed to use a stash of bitcoins with minimal security, in an unprotected file known as wallet. It is impossible for the alleged victim to know who stole the money because the cryptographic architecture of Bitcoin is designed to preserve the anonymity of people transferring the currency.
Today the security company Symantec reported it had caught a piece of malicious software that infects computers over the Internet and attempts to steal wallet files. The vulnerability highlighted by the controversy is very real, says Jeff Garzik, one of the lead developers of the official Bitcoin client and one of a few individuals who are the closest thing the currency has to official spokespeople.
Today, anyone able to access the machines of Bitcoin users, either directly or remotely—via malicious software—can grab their wallet files, he acknowledges. Yet users will still essentially be maintaining their own bank vaults on their computers. He advises Bitcoin users to keep encrypted backups of their wallet files away from the Internet, for example on a USB stick, since the file is needed only when sending money to others.
This may be an option for technically minded early adopters. But if the currency is to be used more widely, a new generation of simple and secure tools for using bitcoins is needed, says Amir Taaki, who leads a U. Earning wider trust will likely require the Bitcoin ecosystem to become more like that of a conventional currency. That might go against the libertarian aspirations of some Bitcoin users, who are attracted by its decentralized nature and lack of any controlling authority.
Yet the currency will still offer those features, says Patrick Strateman, a developer working on building more robust, secure software for bitcoin exchange sites.
Bitcoin exchanges would benefit from becoming friendlier to investigations of fraudulent transactions, says Taaki, though their doing so would make them even more like conventional banks. Claims by two U. But it records only the cryptic public keys that swapped funds, not the identities of the people using them. But Taaki says his Britcoin exchange will help authorities interpret the block chain in cases like money-laundering investigations, and could even correlate it with records of the identities of users of the exchange.
The operator of the Mt Gox exchange, the largest bitcoin exchange in the world, has made a similar pledge, says Taaki. Catch up with our coverage of the event.
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Intelligent Machines Crypto-currency Security under Scrutiny An alleged robbery suggests Bitcoin—an anonymous, decentralized currency—may need bank-like institutions after all.
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