Last Thursday, Equifax CEO Mark Begor and Arne Sorenson, the CEO of Marriott International, appeared before a US Senate subcommittee to testify about the massive data breaches their companies have suffered. While Begor’s statement was more about the security measures Equifax has implemented since the breach and the company’s plans to implement more protections and increase security investment, Sorenson’s revealed more information about the actual breach.

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