© Andy Clark/ReutersSigns on a window advertise a bitcoin ATM machine that has been installed in a cofee shop.
New York attorney subpoenas companies, including shuttered MtGox, as Japanese regulators question bitcoin's legalityManhattan US attorney Preet Bharara's office is seeking information from businesses dealing in bitcoin on how some of them handled cyber-attacks that hamstrung several exchanges in recent weeks, a source familiar with the probe told Reuters on Wednesday.
Subpoenas have been sent to numerous businesses, including MtGox, once the largest bitcoin exchange, as well as other firms that did business with the Tokyo-based company, the source said.
Prosecutors want to know more about the nature of the cyber-attacks on MtGox and other exchanges and how those exchanges dealt with them. MtGox halted customer withdrawals on 7 February in response to what it termed unusual activity, and on Tuesday
the exchange went dark, leaving customers unable to recover their funds.
Comment: See also: How covert agents infiltrate the internet to manipulate, deceive, and destroy reputations