JPMorgan hacking suspect returns from Moscow to face charges
An American living in Moscow has been arrested after returning to New York to face charges of stealing contact information for more than 100 million customers of US financial institutions, brokerage firms and financial news publishers.
Joshua Aaron, 32, was detained at Kennedy Airport on Wednesday and pleaded not guilty to a 22-count indictment which included conspiracy, computer hacking, securities fraud and wire fraud.
His lawyer Benjamin Brafman said Aaron waived extradition and asylum in Russia and returned voluntarily to the United States "to responsibly address the charges".
The prosecution was announced last year by US Attorney Preet Bharara, who said two men had been arrested in Israel after they conspired with Aaron to carry out "the single largest theft of customer data from a US financial institution ever".
Mr Bharara said thieves took data on more than 83 million customers of JPMorgan Chase & Co in 2014 and Aaron was charged with working to hack into the networks of dozens of American companies.
Mr Bharara said the men engaged in "what we have called 'hacking as a business model'."
JPMorgan Chase is America's biggest bank in terms of assets.
In addition, a Manhattan federal court indictment said identifying information on millions of customers from companies other than JPMorgan Chase was stolen from 2012 to last summer.
Aaron's co-defendants - Gery Shalon and Ziv Orenstein - were arrested by Israeli authorities in July 2015 and extradited in June. They have pleaded not guilty.
The indictment said some of the massive computer hacks and cyber attacks occurred as the men sought to steal the customer base of competing internet gambling businesses or to secretly review executives' emails in a quest to cripple rivals.
If convicted of the charges, the defendants could face decades in prison.
Aaron pleaded not guilty to the charges during a brief appearance Wednesday before a magistrate judge. With consent from his defence lawyer, he was due to be held overnight pending another court appearance on Thursday before a district judge.