Tech venture capitalist Marc Andreessen criticized the Obama administration over its handling of developing global cyber wars Tuesday on CNBC.

The co-founder of Silicon Valley venture capital firm Andreessen Horowitz questioned whether U.S. tech companies could remain dominant amid an increasingly "balkanized Internet," which he defined as "different countries like Russia and many others wanting to section off the internet and take a lot more control of it in their countries."

"I'm very nervous, upset, and anxious about this," he said on "Fast Money." "I wish the U.S. government—I wish the Obama administration—were more in front of these two issues. I just don't think they are."

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