Mealey's (April 6, 2023, 2:46 PM EDT) -- OLYMPIA, Wash. — The Washington Supreme Court denied an insurer’s petition to review an appellate court’s ruling in favor of T-Mobile USA Inc. in a coverage dispute arising from a data privacy breach incurred by one of T-Mobile’s vendors, refusing to disturb the court’s finding that T-Mobile’s $17.3 million loss from the breach exceeded its self-insured retention obligation under the policy....