The company said last Friday Facebook, hackers have infiltrated the employee's notebook computer in recent weeks, the world's first big social network, a new wave of network attack victims, many of them back to China.
It says, the user's data is not damage attacks, which, after the occurrence of a few staff to visit a web site last month, infected with their machines, called malicious software, according to a blog post official Facebook posted on just the first three day, the President of the United States day weekend.
Facebook said: "as long as we find that the existing malware, repair all infected machines, familiar with the law enforcement, and began to investigate, continued until today,".
It is not clear why wait until now to Facebook announced event. Facebook declined to comment or the cause of the origin of the attack.
In the other company's knowledge of the security experts said, he was told that Facebook attack seems to be originated in China.
The attack on Facebook, it said, its members have more than 100 million people, and emphasizes the increasingly serious threat, the purpose of network attack in all kinds of target.
Twitter micro blog, social networks, in earlier this month said it has been hackers, and possibly affected about 250000 user account, the attacker obtain information, including user name and email address.
Newspaper website, including "the New York times", "Washington post" and "the Wall Street journal, was also penetration. These attacks is due to Chinese hackers coverage of China's news agency.
Earlier this week, President Obama issued an executive order to better protect the country's key infrastructure network attack.
"Into"
The Facebook in its in the blog article points out, it is not the one who in the attack, "the attack and penetration recently," although it did not specify who.
The federal bureau of investigation has declined to comment, and the United States department of homeland security did not reply immediately seeking comment on phone.
In the blog post, the Facebook described as "zero day" attack, is considered to be one of the most complicated and the most dangerous type of computer hacker attack. Zero-day attacks, this is rarely found or disclosure of their goal, is expensive launch, would normally suggest the government's participation.
Although Facebook said there was no user data are damaged, the event may improve consumer privacy and personal information stored in a social network vulnerability concerns.
Facebook has in the past few privacy mistakes, because it handles user data way. In 2011, it solved the privacy and federal regulators investigation.
A person familiar with the situation, the staff of the notebook computer, including "fragments" Facebook source code and employee E-mail was leaked the types of information.
Facebook said it found a suspicious files and tracking employees laptop computer. Notebook computer forensic examination, Facebook said it set a malicious files, and then search the whole company scope, and determined the "several other affected employees notebook computer".
On the another person said, through the coding strategy are discussed a web site, Facebook staff has infected.
The company also said that, it found that the previous attempt to see around the built-in network defense, and the new protection measures, increased the February 1.
Because the attack using the third party web site, it may infiltrate into as many companies may be an early attempt.
If they according to the established model, the attacker will learn, in all affected the company's computer network. Then, they can be used in more targeted attacks, data breaches the source code and other intellectual property rights.
Such a popular website another worry is, hackers can use the central control of its user base infection wide a piece.
In January 2010, Google report that it has penetrated in the old version of the Internet Explorer Web browser through a "zero-day" loopholes. The attacker looking for the source code, and dissidents in China are also interested. Google results reduces their business in China.
 



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