That being said, I am not attempting to fearmonger and take away freedom or privacy. I'm playing devil's advocate for what is really more of a business continuity issue than a government concern (at the moment).

That's an awfully broad statement. There's evidence, though it's mostly based on circumstance. I don't think I need to be linking articles about the China Cyber Attack stuff, or North Korea, as that's all fresh.

But I'm happy to offer other links from the recent and not so recent past that are relevant.

Somewhat recent -

Russian Cyber Attacks on Georgia
http://blogs.zdnet.com/security/?p=1670

PowerGrid Vulnerability of the US
http://www.time.com/time/nation/article/0,8599,1891562,00.html

In a Galaxy Far Far Away... 1998, a brief description of L0pht testifying before congress.Excerpt included.
http://hsgac.senate.gov/l0pht.htm

""We have become so dependent on communications links and electronic microprocessors that a determined adversary or terrorist could shut down federal operations or damage the economy simply by hacking into our computers. The two General Accounting office reports which will be released at our hearing--one on the State Department and one on the Federal Aviation Administration- -raise serious concerns about the risks to the public because of information security weaknesses.""