• A poster board detailing an insider trading scam involving hacking is displayed at the start of a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the computers of newswire services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig)

    A poster board detailing an insider trading scam involving hacking is displayed at the start of a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the ... computers of newswire services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig) (The Associated Press)

  • Commissioner of the U.S. Security Exchange Commission Mary Jo White speaks during a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the computers of newswire services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig)

    Commissioner of the U.S. Security Exchange Commission Mary Jo White speaks during a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the computers of ... newswire services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig) (The Associated Press)

  • United States Secretary of Homeland Security Jeh Johnson, right, speaks during a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the computers of newswire services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig)

    United States Secretary of Homeland Security Jeh Johnson, right, speaks during a news conference in Newark, N.J., Tuesday, Aug. 11, 2015. An international group of hackers and stock traders made $30 million by breaking into the computers of newswire ... services that put out corporate press releases and trading on the information before it was made public, federal prosecutors said Tuesday. (AP Photo/Seth Wenig) (The Associated Press)

Hacker ring accused of making $100M in stock market by stealing corporate press releases

Economic Indicators Associated Press

Federal prosecutors say Ukrainian hackers worked with securities traders to make $30 million by breaking into the computer systems of companies that publish news releases about mergers and acquisitions.

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According to a criminal indictment unsealed Tuesday, the defendants gained access to news releases and traded on the information in them before they were made public.

The hacking scheme allegedly raked in $100 million between 2010 and 2015. It is being called the biggest case of its kind ever prosecuted, and one that demonstrates yet another way in which the financial world is vulnerable to cybercrime.

The Securities and Exchange Commission also brought civil charges against the nine plus 23 other people and companies in the U.S. and Europe.