Infiltrators penetrated "Facebook" .. No threat to users' data

Company said, "Facebook", on Friday, she had been a series of attacks by an unknown group of hackers, but did not find evidence of the exposure of users' data at risk.

The company said in a blog post "discovered security Facebook last month that our systems were targeted in a sophisticated attack, and attack took place when she visited a handful of employees a Web site for the development of portable telephones endanger."

The social networking, which says it has more than a billion active users around the world, "Facebook is not alone in this attack. Clear that others were attacked and infiltration recently too."

The announcement comes "Facebook" after attacks in recent private computer networks other prominent sites on the Internet.

The network said "Twitter" social networking last month, she had been attacked by hackers, although likely to be approximately 250 thousand account for users exposure to risk with managed attackers from entering the information, including user names and email addresses.

The institutions "New York Times" and "Washington Post" and "Wall Street Journal" that their websites also been penetrated. And attributed these institutions such attacks to Chinese hackers have targeted coverage of China.