We accept Visa, Mastercard, American Express, Discover, Diners Club, and JCB payments from customers worldwide.
For our security [and yours] we use Stripe as our Credit Card Processor. Stripe says:
Stripe has been audited by a PCI-certified auditor and is certified to PCI Service Provider Level 1
This is the most stringent level of certification available in the payments industry. To accomplish this, we use the best-in-class security tools and practices to maintain a high level of security at Stripe.
For more information go to Stripe's security page.