Hackers allegedly linked to the Islamic State of Iraq and Syria (Isis) militant group today broke into the website of Malaysia Airlines.
"Plane not found," said a message on the front page of the national airline's website at www.malaysiaairlines.com this morning, signed off as "Cyber Caliphate", as a rap song played in the background.
The website title was also changed to "Isis will prevail".
It is understood that only those using Telekom Malaysia's Unifi service are taken to the hacked page.
Hackers claiming to be Isis supporters have in the past brought down Twitter and YouTube accounts.
Some experts believe today's attack on the MAS website appears to be a DNS redirect rather than an all out hack.
DNS, or domain name system, translates a domain name to the Internet Protocol (IP) address. – January 26, 2015.