Cybersecurity expert Melih Abdulhayoglu, CEO of Comodo, tells me that content authentication is "the next big thing."

According to Abdulhayoglu, the infrastructure exists to authenticate content, and we're not taking advantage of that technology at enormous societal risk, because "there's a huge play in trust and how you manipulate it for ill gain."

In the physical world, we rely on our five senses to inform us about reality, but that context doesn't exist online.

"We are building a society that is totally dependent on digital content. At some point we are going to have a 9/11-like incident because of our reliance on digital data, because that data can't be trusted… All it takes is one credible source to push out something that people will trust without verifying -- a stock market could crash, anything could happen," he said.

Sounds like a lot of what-if. But then someone calls you and swears you called them when you know you didn't, and the National Security Agency finds your denials suspicious. What then?

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