Question

what are the data leak in facebook 2018

Answer 1

the users data was leaked

Answer 2

NEW DELHI: The government has sent a notice to Facebook, asking it provide details by April 7 regarding possible data breach and manipulation of Indian electoral process by the social media giant or its associates.
The notice to Facebook comes days after the IT Ministry asked its associate and London-based vendor Cambridge Analytica a host of questions over similar allegations, that included misusing the data of Indian users to influence and "manipulate" elections.