Hong Kong ( CNN ) The official Malaysia Airlines website has been hacked by a group claiming to support Islamist terror group , ISIS . On logging into www.malaysiaairlines.com on Monday morning , users were presented with an image of a Malaysia Airlines Airbus and messages that read `` 404 -- Plane Not Found '' and `` Hacked by Lizard Squad -- Official Cyber Caliphate . '' The browser tab also read `` ISIS will prevail . '' The Malaysia Airlines homepage later changed to a black background featuring a mocked-up image of a lizard in a top hat complete with monocle . Users were directed to a Twitter page called `` @ lizardmafia , '' which featured a series of largely asinine posts . The airline , which is currently restructuring itself in the wake of the loss of two of its airliners last year , could not be contacted by telephone . In a post on its Facebook account , the airline denied its internal servers , which contain passenger information , had been compromised . It said its Domain Name System ( DNS ) had instead been hijacked , with users redirected to the hackers ' website . The airline added the issue has now been resolved with its service provider and the system is expected to be fully recovered within 22 hours . The matter has also been reported to Malaysian authorities , it said . But the hackers , identifying themselves as the Lizard Squad , took to Twitter claiming they had penetrated Malaysia Airlines ' email account and posted a screenshot . Meanwhile , tweets from the airline 's official account directed users to a separate URL for its online booking service . This link worked as normal . CNN 's Wilfred Chan in Hong Kong contributed to this report .
Malaysia Airlines website taken down by group calling themselves Cyber Caliphate . But the airline claims its systems were intact and users were instead redirected to hackers ' site .