Media playback is unsupported on your device

Computer malware created for sophisticated cyberwarfare

29 May 2012 Last updated at 13:52 BST

A new type of computer malware, described as "the most sophisticated cyberweapon yet unleashed", has been uncovered in computers in the Middle East.

Antivirus researchers and software manufacturers in Russia, Hungary and Ireland uncovered Worm.Win32.Flame.

They also believe it may have infected machines in Europe.

Dr. Boldizsár Bencsáth, from the Laboratory of Cryptography and Systems at Budapest University, says the computer virus was most likely to be a state-sponsored cyberweapon, used as a tool for international espionage.