Facebook, the world's largest social network, and its Instagram photo-sharing site, suffered temporary outages around the world for up to an hour on Tuesday and the company said later that an internal software networking error was to blame.
Facebook spokesman said "This was not the result of a third party attack. But instead occurred after we introduced a change that affected our configuration systems."We moved quickly to fix the problem, and both services are back to 100 per cent for everyone,".
Hacking group Lizard Squad have claimed responsibility for the Facebook recent technical difficulties, the Lizard Squad is a group of hackers that has caused havoc in the online world before, taking credit for attacks that took down the Sony PlayStation Network and Microsoft's Xbox Live network last month.
Facebook had 1.25 billion monthly active users at the end of September last year, while photo-sharing service Instagram has 300 million active monthly users uploading around 70 million photos per day.
As a precaution, Facebook users are advised to change their passwords and review their privacy settings, Santorelli said.