Hundreds of millions of people worldwide were unable to use Facebook and Instagram for around an hour today after an alleged cyber-attack. An online group Lizard Squad have however claimed they hacked the two social media sites at around 6am GMT.
Both sites, which have a total of 1.5billion users, appeared with error messages in the United States, Europe and Asia for around an hour.
But Mark Zuckerberg's Facebook, which also owns Instagram denied they were ever hacked and blamed the outage on 'a change that affected our configuration systems'.
