Facebook Inc (FB), Zynga Inc (ZNGA) No, Symantec (SYMC) Yes

Facebook Inc (NASDAQ:FB) was scheduled to be a target by the hacking group Anonymous Monday in response to its “poor treatment” of online game company Zynga Inc (NASDAQ:ZNGA), which has lost most of its market share in the online games market since Facebook (FB) changed its format to the current “Timeline” layout that has obscured users’ access to such formerly popular games like Farmville.

So while Anonymous threatened to stand up for the employees at Zynga Inc (NASDAQ:ZNGA) who were being laid off due to plummeting revenue and blaming Facebook Inc (NASDAQ:FB) for it, nothing ultimately happened Monday other than a few reports of brief interruptions that were not blamed on hackers. That may come across a good news for investors in Facebook (FB) stock like billionaire fund manager George Soros of Soros Fund Management. However, the same can’t be said with other companies, as other hacker groups reportedly got into ImageShack, ZPanel and Symantec Corporation (NASDAQ:SYMC). Hack the Planet, a hacking group, claimed that it had gathered a wealth of personal data from people who are connected in some way with these sites.

What might be troubling for Symantec Corporation (NASDAQ:SYMC) was that Hack the Planet’s breach claimed to gather e-mail addresses and passwords for nearly 3,200 employees. Who knows what Anonymous could have gotten from Facebook Inc (NASDAQ:FB) if it had carried out its attack?

“Symantec is aware of the claims being made online,” said Symantec Corporation (SYMC) spokeswoman Katherine James. “We take each and every claim very seriously and have a process in place for investigating each incident. Our first priority is to make sure that any customer information remains protected. We are investigating these claims and have no further information to provide at this time.”

While there actually was a data breach at ImageShack, ZPanel and Symantec Corporation (NASDAQ:SYMC), there was talk that Facebook Inc (NASDAQ:FB) was going to go dark if Anonymous went through with its attack. With one billion users on the site, how might the Internet universe have looked if the Blue F was offline for a day? Would it have affected Facebook’s relationship with Zynga Inc (NASDAQ:ZNGA)? What are you thoughts about these hacks or theats? Are you invested in any of these companies? How do you feel about online security?