An anonymous hacker used phony Bitcoins (BTC) last month to drive down the price of the online currency from $17.50 to a penny within the span of 30 minutes, Bitcoin exchange firm Mt.Gox has revealed. The hacker was able to create 2 million counterfeit BTC by manipulating the company's trading database after gaining access to a compromised administrator account on June 19, according to Adam Barr, head of support for Mt. Gox.
The hacker also assigned about $1 million in phony cash to the compromised account. After the massive volume of Bitcoins entered the Mt.Gox system, the price of the online currency crashed, creating a buying frenzy. The online thief ultimately got away with 2000 authentic Bitcoins before the site's security measures kicked in to stop trading.
Mt.Gox said user accounts were not compromised during the exploit and has promised to replace the stolen Bitcoins at the company's expense. The fake Bitcoins and cash "existed inside Mt.Gox alone," Barr says, and could not be transferred into a wallet for use in another exchange.
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