It could be a spate of reasons...

But ain't it sad when billions of people in china can't access websites like youtube/facebook/friendster..etc ?

There weren't any reports on exactly which websites were attacked except Google, Yahoo & Adobe.

Seems to me...these days people are making use of internet to attack government groups or companies. It's the best way to cripple them yet staying hidden.

Just a recent case would be...U.S. & South Korea Cyber-Attack...

another one would be baidu.com cyber-attacked.

Everything is technology these days. Everyone is cyber-attacking.
Instead of spending billions of dollars on aircrafts/tanks/equipments..

They are spending it on Internet Security.

But anyway..here's my take on it.

The only reason I can find for Google to leave China is because,

Baidu.com is controlling over 60% of the search-engine market share in China,

with Google only controlling a mere 20% or so. In fact, Google's share in China is declining.

Afterall, It may be more than just the issue on "internet freedom".

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Here's an interesting finding..

34 Corporations including Google, were hit by the attack.

All 34 corporations are BASED in Silicon Valley.

Attackers used different tailor-made trojans to target different corporations.

However, The sophistication was not in the trojans itself.

The sophistication of the attack was that..the attacker knew WHERE to attack.

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Heh sorry for being so geeky.

I get hyped up when I read such stuff.