Mealey's ( August 26, 2021, 10:28 AM EDT) -- CINCINNATI — Sonic Corp. failed to establish the need for an interlocutory appeal of a trial court’s ruling granting class certification to a group of plaintiff financial institutions (FIs) in a consolidated class action over the fast food chain’s 2017 data breach, a Sixth Circuit U.S. Court of Appeals panel ruled Aug. 24, finding that some of the defendant’s arguments pertain to causation rather than class certification....