The social networking site Facebook was the victim of a “very complex” hacking attack last January Published on the blog. In that post on Saturday, February 18th, the company further claimed that no user’s personal information was stolen in the hack.

The US social networking company Facebook said in a statement that it started when its engineers were accessing an “unsafe” mobile developer’s site. The malware was automatically downloaded to the laptops of the Facebook security team experts at the time, which was immediately searched on the infected machines as soon as it was spotted and steps were taken to fix the problem, Facebook said. The law enforcement agencies have also been informed about this and security development work is going on till now.

Currently more than one billion people in the world are using Facebook and this number is increasing every day.

Not just Facebook, but many other major websites around the world such as Twitter, Wall Street Journal, New York Times, Washington Post, Sony Entertainment and many more widely used websites have been hacked. Some of these sites also claim that they are still detecting hacker group attacks and that they are being thwarted.

Twitter has acknowledged The emails, passwords and personal information of some 250,000 users were leaked. Owners are then asked to set a new password via email by blocking the passwords of the affected accounts.

The NY Times, WSJ and Washington Post have blamed Chinese hackers for attacking their servers. However, no Chinese hacker group has acknowledged this.