2017 — Uber: Uber disclosed Tuesday that hackers had stolen 57…

Uber disclosed Tuesday that hackers had stolen 57 million driver and rider accounts and that the company had kept the data breach secret for more than a year after paying a $100,000 ransom.The deal was arranged by the company’s chief security officer and under the watch of the former chief executive, Travis Kalanick, according to several current and former employees who spoke on the condition of anonymity because the details were private.The security officer, Joe Sullivan, has been fired. Mr. Ka