Absolutely. It is encrypted through the Payment Card Industry Data Security Standard (PCI-DSS). Your credit card information is stored only as long as is necessary to complete your purchase. After that is complete, your credit card information is deleted. All direct payment gateways adhere to the standards set by PCI-DSS as managed by the PCI Security Standards Council, which is a joint effort of brands like Visa, MasterCard, American Express and Discover.
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