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Input: The average amount of money stolen in each of 14 U.S. ATM heists was $500 000 per incident. Losses in Russia averaged $1.2 million per incident  but one bank there managed to catch the attack and return some of the stolen funds   Group-IB  said.
Hackers also stole documentation for OceanSystems’ Fed Link transfer system used by 200 banks in Latin America and the United States   it  said. In addition  they successfully attacked the Russian interbank messaging system known as AW CRB.
Once hackers penetrated targeted banks and financial organizations  they stole internal bank documentation in order to mount future ATM attacks   Group-IB  said. In Russia  the hackers continued to spy on bank networks after break-ins  while at least one U.S. bank had documents robbed twice   it  said.
 Group-IB  said  it  had notified Interpol and Europol in order to assist in law enforcement investigations.

Hackers hit U.S. Russian banks in ATM robbery scam: report