Anyone who does not think that Walmart, Sears, Kohls, etc. are not equally exposed does not understand the laxness of IT security. Whether people want to believe it or not, the major oil companies communicate confidential information without encryption. The Russians, Chinese, and N. Koreans busy themselves hacking these communiques.
The public still doesn't understand that Edward Snowden (NSA) did not have an advanced degree in IT. What he had was access to info for which he did not have "a need to know". "Need to know" is an IT-101 Security rule. Amazing isn't it? Makes me feel safe every time I use my credit card. Jim