Google says hackers associated with a prolific ransomware group are sending extortion emails to executives at “numerous” large organizations after claiming to have stolen their sensitive information from a suite of business software products developed by Oracle.

In a statement provided to TechCrunch, Google’s head of cybercrime analysis Genevieve Stark said the hackers began sending emails to executives around September 29, but that the tech giant has not yet substantiated the hackers’ claims.

The emails were sent from hundreds of compromised accounts, including one used by a known financially motivated cybercrime group affiliated with the Clop ransomware gang.

Charles Carmakal, the chief technology officer of Google’s incident response unit Mandiant, told TechCrunch that the maliciou

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