Two years after the Stuxnet computer worm attacked its nuclear program, Iran is increasingly turning to cyberspace to retaliate against sanctions.

The Flame virus went undetected for two years by every online security firm. Now they need to find a new way to protect the world’s PCs from malware.

The president who made a stirring declaration about internet freedom authorised a wave of cyber-attacks on Iran.

New forms of fraud are emerging that are making bank cyber fraud even more lucrative than the drug trade, says an auditing expert.

Iran has been targeted by a second computer virus in a "cyber war" waged by its enemies, its commander of civil defence said on Monday.

An Iranian commander has accused German engineering company Siemens of helping the US and Israel launch a cyber attack on its nuclear facilities.

In the wake of the Stuxnet virus, the topic of international "cyberwar" split IT experts at the world’s top tech fair, CeBIT.

Israel has tested a computer worm believed to have sabotaged Iran’s nuclear centrifuges and slowed its ability to develop an atomic weapon.

Weaker combatants have always used unconventional or inexpensive means to defy stronger foes, including guerrilla warfare and suicide attacks.

Iranian government accuses the west of launching an "electronic war" following sophisticated Stuxnet worm attack.