Mark Cheffo, a Dechert partner representing Microsoft, sent a letter Tuesday to attorney David Boies of Boies Schiller Flexner. Boies represents Delta and had sent letters on behalf of the airline to CrowdStrike and Microsoft. Cheffo wrote in his response that Microsoft empathizes with Delta and its customers on the impact of the CrowdStrike incident. Cheffo wrote that Microsoft offered to help Delta for free. Cheffo described a letter on July 22, from Microsoft to a Delta employee, offering help.

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Persons: Ed Bastian, CNBC's, Mark Cheffo, David Boies, Boies Schiller, Boies, Hossein Nowbar, Cheffo, Delta, Satya Nadella, Bastian, CrowdStrike, George Kurtz Organizations: Microsoft, Delta Air Lines, Delta, IBM, Web Services Locations: Boies, Delta, Atlanta