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Submission + - Bitcoin Exchanges Halt Withdrawals After 'Massive' DDoS Attack (

An anonymous reader writes: The Bitstamp bitcoin exchange has temporarily halted its users from withdrawing bitcoins, as it is targeted by a "massive and concerted" cyber attack.

A DDoS (distributed denial of service) attack is being felt across the bitcoin landscape, with a number of exchanges affected by what is known as the cryptocurrency 'transaction malleability problem', first discovered in 2011 and flagged up by the Mt Gox exchange earlier this week.

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Bitcoin Exchanges Halt Withdrawals After 'Massive' DDoS Attack

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