CurrentC's Data Breach Adds to Awful Week for Apple Pay Rival

The Scan & Go mobile payment app at a self checkout register at a Wal-Mart in San Jose, Calif on Sept. 19, 2013 Photograph by Jeff Chiu/AP Photo

The launch of Apple Pay had already turned into a mess for CurrentC, a rival payment network backed by Wal-Mart Stores and other retailers—and that was before hackers gained access to the e-mail addresses of CurrentC’s pilot users.

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