Citigroup tech executive talks security, cloud, automation in inaugural TAMI talk

By Ryan Deffenbaugh

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Citigroup Inc. faces a potential cyberattack every 20 seconds, according to Don Callahan, the head of global operations and technology at the bank and financial services company. The Citi executive spoke June 20 at Manhattanville College for the inaugural TAMI Talk, an acronym for technology, advertising, media and information. The talks are an initiative of…

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About the author

Ryan Deffenbaugh covers energy, education, food and beverage and the Sound Shore for the Westchester County Business Journal. He previously worked for Westchester Magazine and The Citizen daily newspaper (Auburn, N.Y.). He started with the Westchester County Business Journal in March 2016.

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