A proposed class action lawsuit was filed on 12 March 2015 against Uber Technologies Inc over a recently disclosed data breach involving the personal information of about 50,000 drivers.

Last month, Uber announced that in September 2014, it had discovered that an unknown person had gained access to a database containing the names and driver's license numbers of thousands of drivers.

The suit filed in the Federal Court in San Francisco by an Uber driver in Portland, Oregon, claims that the company did not do enough to prevent this breach and waited too long - about five months - to disclose it.