Chicago sues Uber over data breach

Chicago and Illinois' Cook County are suing Uber over the 2016 data breach that implicated 57 million driver and passenger accounts and the company's decision not to publicly disclose it until this month, per the Chicago Sun-Times. The paper notes that the city's mayor, Rahm Emanuel, is the brother of an Uber investor and is seen as having been favorable to the ride-hailing company in the past.

Why it matters: State, local and federal officials aren't happy about the breach, with attorneys general around the country investigating the issue and members of Congress writing to the company about the hack on Monday.

What they're saying: "We take this matter very seriously and we are happy to answer any questions regulators may have," said an Uber spokesperson in a statement.