DDoS attacks have been confirmed that have taken down two credit unions and several large banks' websites. It's been proven our entire financial system is vulnerable. While stealing personal information doesn't seem to have been at play, this is a critical concern for the entire financial services industry. The two confirmed, targeted credit unions were able to get their sites back up in a few hours, which is excellent news.

Consider for a moment if these attacks had not been one offs, but a coordinated and concerted effort to take down the U.S.—or even global—banking system. It's not difficult to imagine, raising grave safety and soundness and national security concerns.

If this sounds far-fetched, you're wrong. In 2007 the Estonian government was forced to shut down all access to government websites from IP addresses outside of Estonia when rioting spread from the streets to the virtual highway, according to arstechnica.com. Estonia claimed that the DDoS attack came from Russian government IP addresses.