Hackers have reportedly stolen $10 million from an unnamed Ukrainian bank, according to an independent IT monitoring organization.The Kyiv branch of ISACA, the Information Systems Audit and Control Association, reported this week that the theft had occurred via the SWIFT international banking system, the organization responsible for managing money transfers between financial institutions worldwide.

ISACA announced the theft after members of its Kyiv chapter were hired through consulting organizations to investigate a hack at a Ukrainian bank. It did not name which bank had hired it to conduct the investigation.