WALNUT CREEK, Calif.--(BUSINESS WIRE)--YapStone™, a global provider of web and mobile payment technology solutions for large vertical markets and online marketplaces, announced that it has completed its recertification as a Payment Card Industry-Data Security Standard (PCI DSS) Level 1 Payment Gateway and Payment processing company, following a detailed audit by BrightLine. On an annual basis, YapStone contracts the licensed CPA firm to conduct a comprehensive audit to ensure credit card data i
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