Tthe Nasdaq MarketSite in New York’s Times Square. All trading on Nasdaq, the second-biggest US stock exchange, was halted yesterday shortly after midday due to a technical problem, the exchange said. Photograph: Lucas Jackson/Reuters

Thirty minutes into the crippling outage that hobbled the Nasdaq stock market yesterday afternoon, stopping all trading in $5.9 trillion worth of US e(...)

Dmitriy Smilianets (29), from Moscow, has pleaded not guilty to charges related to the hacking of some 160 million credit cards. Photograph: Pawel Kopczynski/Reuters

A Russian man accused of being part of the largest cybercrime ring ever prosecuted in the United States has pleaded not guilty to charges that could (...)