You should be just as if not more concerned with how corporations handle your personal data like credit card info. Bank info, social security info. Etc. as you should trying to hide yourself.

I work in telecommunications and I provide large voice and data infrastructure to some very large companies that most of you have And more than likely continue to do business with. Many of these companies have your information stored on servers sitting on the edge of the public Internet. These servers sit behind firewalls but Chinese hackers can very easily blow through these firewalls, just ask me how I know.

When you purchase something online your financial data is being transported across the public Internet. When you buy something with a credit card there is a 90% chance that transaction is transmitting your data across the public Internet and nothing transported over the public Internet is secure despite how heavily it is encrypted.