Duqu 2.0: computer virus 'linked to Israel' found at Iran nuclear talks venue

Internet security company Kaspersky says software was used to infiltrate venues for international negotiations on Tehran's nuclear programme

A powerful computer virus linked to Israel is thought to have been used to spy on the recent Iran nuclear talks after being found in the networks of three hotels that hosted the negotiations.

The security company Kaspersky discovered the virus, which it said was a new variant of the Duqu worm, itself a variant of the state-sponsored computer virus Stuxnet, used to attack Iran's nuclear infrastructure in 2010.