Mealey's (October 2, 2018, 8:28 AM EDT) -- SAN FRANCISCO — The same day that Facebook Inc. announced a data breach affecting almost 50 million of its users’ accounts, two of the social network’s account holders on Sept. 28 filed a putative class action against it for unfair competition, negligence and deceit in California federal court (Carl Echavarria, et al. v. Facebook Inc., No. 3:18-cv-05982, N.D. Calif.)....