Mealey's (March 5, 2018, 1:01 PM EST) -- SAN FRANCISCO — A consumer on March 1 filed a class action complaint in a California federal court against a Bitcoin exchange, asserting causes of action for violation of California’s unfair competition law (UCL) and negligence in relation to the way it handled the sale of a new cryptocurrency known as Bitcoin cash (Jeffrey Berk v. Coinbase Inc., et al., No. 4:18-cv-01364, N.D. Calif.)....