If you use Network Solutions for your domains, you may want to read this and consider changing your credit cards.
http://blogs.channelinsider.com/secure_channel/content/network_security/network_solutions_suffers_large_data_breach.html
http://www.careandprotect.com/feedback/e-commerce-data-security-alert%E2%80%93-some-merchants-were-affected-but-problem-is-fixed/