The now infamous Stuxnet worm may have contributed to problems with Iran's uranium enrichment programme which have been going on for years, according to a former senior UN nuclear weapons inspector.
Olli Heinonen, who stepped down in August from his role at the UN, told Reuters that technical problems have plagued Iran's nuclear efforts at the Natanz enrichment plant.
These include the design of the centrifuges at the facility, which are not as strong as they should be.
However, when asked by Reuters about Stuxnet, Heinonen, who was deputy director general of the International Atomic Energy Agency, said that this " could be one of the reasons" for Iran's problems.
"There is no evidence that it was, but there have been quite a lot of malfunctioning centrifuges," he said.
Security researchers at Symantec unearthed new evidence last week suggesting that the worm was crafted specifically to target machinery in nuclear enrichment plants.
Experts have described Stuxnet as one of the most significant and sophisticated hacking attempts ever created, and suspect that it could have been created and resourced only by a nation state.
Stuxnet exploited four separate zero-day vulnerabilities, and was designed to locate and disrupt the industrial supervisory control and data acquisition systems found in nuclear power plants and uranium enrichment facilities.
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