Apple's vulnerability has been raised to another level as a number of Apple employees' computers were hacked by those who have also targeted Facebook employees just earlier this week.

"Apple has identified malware which infected a limited number of Mac systems through a vulnerability in the Java plug-in for browsers," said Apple to AllThingsD.

However, Apple assured that no data from Apple was taken by the hackers. The company did claim that they are working with the government to get to the bottom of the incident.

On a related note on hacking, News.com reports that Mandiant Corp, a security company based in Virginia, drafted a report that explored the cyberattacks in the U.S. The company found that majority of the attacks, labeled as "Advanced Persistent Threat 1" or APT 1, has been traced back to a 12-story building outside Shanghai.

"We believe that APT 1 is able to wage such a long-running and extensive cyber espionage campaign in large part because it receives direct government support," said Mandiant to News.com.

On the side of the Chinese government, it stands resolute on its claim that the accusations were unfounded, stating that China is also a vulnerable country that can be targeted by hacking.

Could there be a link to these? Reuters reports that there have already been speculations on the origin of the attacks, and China has already been brought up more than once.

According to the report, an undisclosed source was quoted by Reuters saying, "This is a new campaign. It's not like the other ones you read about where everyone can tell it's China."

As early as last year, Apple has already retracted its outright claim of a virus-free usage, as over 600,000 Mac computers were struck by Flashback botnet, reports The Atlantic.

Of those attacks, 300 targeted Apple computers in the actual headquarters, forcing company to have a more generic and safe tagline on safety.