Joshua Samuel Aaron (born January 8, 1984 in Maryland)  was wanted by the Federal Bureau of Investigation and the United States Secret Service for his alleged involvement in a scheme to hack American companies to acquire customer contact info. He used the alias “Mike Shields” (including false identification and a Social Security number belonging to another person) to communicate with brokerage companies and co-conspirators. The plan, arranged from 2007-2015, utilized the individual data of Americans to control the volume and price of stocks. This led to leading email campaigns and prearranged stock trades. Aaron allegedly acted as the front-man 
After pumping a stock during the days or weeks of the email campaign, members of the conspiracy, would dump their shares, often resulting in huge profits to members of the conspiracy. 
Warrant and Arrest
An arrest warrant for was issued in June 2015, by the United States District Court for the Southern District of New York.
Aaron, since living in Moscow, was arrested Wednesday at Kennedy airport after he flew to the United States to surrender. He pleaded not guilty to a 22-count indictment charging him with conspiracy, computer hacking, securities fraud and wire fraud, among other charges. 
Trial Information 
The trial is being presided over by U.S. Magistrate Judge James C. The charges were made public on November 10, 2015. 
Aaron, 32, a U.S. citizen who had been residing in Moscow, Russia, is charged in a Superseding Indictment, S1 15 Cr. 333 (LTS). The statutory maximum penalties are prescribed by Congress and are provided here for informational purposes only, as any sentencing of the defendants will be determined by the judge. 
The Office of the State Attorney of the Israel Ministry of Justice's Department of International Affairs and the Israel National Police, including its Cyber Unit – Lahav 433, for their support and assistance with the investigation. He also thanked the National Credit Union Administration, the Securities And Exchange Commission, Immigration and Customs Enforcement – Homeland Security Investigations, the Office of International Affairs of the U.S. Department of Justice, the Financial Industry Regulatory Authority, and the Information Sharing and Analysis Center, which significantly aided the investigation by facilitating information-sharing among the victim institutions.