Note from the Publisher:  Overnight, there has been a security breach in the Hong Kong based Bitfinex bitcoin exchange.  Approximately 120,000 bitcoin have been stolen, worth around $72M and all trading has been halted on the exchange.  At time of publication, bitcoin valuation has dropped by around 10% since news of the breach broke, showing the extreme volatility of the crypto-currency. 

"Today we discovered a security breach that requires us to halt all trading on Bitfinex, as well as halt all digital token deposits to and withdrawals from Bitfinex.

We are investigating the breach to determine what happened, but we know that some of our users have had their bitcoins stolen. We are undertaking a review to determine which users have been affected by the breach. While we conduct this initial investigation and secure our environment, bitfinex.com will be taken down and the maintenance page will be left up.

The theft is being reported to—and we are co-operating with—law enforcement."

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