Twitter says it was the victim of a 'coordinated social engineering attack'

Mike Chapple, an information technology professor at the University of Notre Dame's Mendoza College of Business, said in an NPR piece, "The way that cryptocurrency works, once a transfer takes place, it is irreversible and virtually untraceable," Chapple said. "The real question here is how the attackers gained access to these prominent Twitter accounts in the first place." Chapple, a former computer scientist with the National Security Agency, said one line of investigation that Twitter and law enforcement may pursue is whether the hack occurred at a third-party service that had access to all of the accounts.

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