Jeremiah Grossman, chief of security strategy at security firm SentinelOne, says this was not a sophisticated hack. State Attorneys General from New York and Massachusetts have opened investigations into the data breach. Yet another data breachIn terms of scale, Uber's hack doesn't measure up to other major breaches. But Uber's breach is different -- the company tried to cover it up and did not alert authorities or users of the issue. Fifty-seven million people is a significant chunk of Uber's user base, which hit 40 million monthly active riders last year.

Source: CNN November 22, 2017 19:38 UTC