PHILADELPHIA (AP) — The Wawa convenience store chain is facing a wave of lawsuits over a data breach that affected its 850 locations along the East Coast.

Pennsylvania-based Wawa Inc. says it discovered malware on its payment processing servers this month before stopping the breach Dec. 12.

READ MORE: Supply Chain Issues: 'There Really Are Problems Everywhere,' Even For Small Companies

Wawa officials believe the malware had been collecting card numbers, customer names and other data since as early as March.

READ MORE: "There's Not A Booster With A Big Enough Blank Check"; Steelers Head Coach Mike Tomlin Shoots Down College Football Coaching Speculation

The Philadelphia Inquirer reported Friday that at least six lawsuits seeking class-action status have been filed in federal court in Philadelphia. A Wawa spokesman declined to comment on the pending litigation.

MORE NEWS: COVID-19 In Pittsburgh: Allegheny County Reports 350 New Cases, 2 Additional Deaths

(© Copyright 2019 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)