Ralph Langner, a German researcher, says Stuxnet has a “second warhead”.

德国研究者拉尔夫•兰纳(Ralph Langner)表示：该病毒还带有“第二枚弹头”。

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Langner, the Hamburg computer security expert, said Stuxnet works like a sophisticated bank robbery.

汉堡电脑安全专家朗格尔说，Stuxnet就像计划周密的银行抢劫那样工作。

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No one was more intrigued than Mr. Langner, a former psychologist who runs a small computer security company in a suburb of Hamburg.

最好奇不过的是前心理学家朗格·内尔，他在汉堡郊区开了一个小小的电脑安全公司。

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Leading security expert Ralph Langner said in 2011 that Mossad - Israel's security agency - had collaborated in the attack with US intelligence.

BBC: Flame: Israel rejects link to malware cyber-attack

Outside of the United States, iReporters like Larry Langner of Paris, France, found that pay phones were not terribly difficult to find, especially in major cities.

CNN: Pay phones: The search for an endangered species

Ralph Langner, a German computer security researcher who was among the first people to study Stuxnet, told various media outlets that after Stuxnet recognizes its specific target, it does something no other malware program has ever done.

CENTERFORSECURITYPOLICY: The strategic lessons of Stuxnet