Oracle Investigating Hacks of Customers’ E-Business Suite (1)

Oracle Corp. is investigating hacks of numerous customers’ E-Business Suite applications following an extortion campaign targeting large organizations, according to two people familiar with the matter.

The company on Thursday told employees that they had discovered exploitation of known flaws in its product, for which it had offered patches in July, according to one of the people.

Rob Duhart, Oracle’s chief security officer, said in a statement that the company is “aware” some customers have received extortion emails and encouraged them to apply the latest security updates.

In a large swath of emails sent to executives at various companies, a ...