Random bits

“Stuxnet targets only frequency drives from these two companies that are running at high speeds — between 807 Hz and 1210 Hz. Such high speeds are used only for select applications. Symantec is careful not to say definitively that Stuxnet was targeting a nuclear facility, but notes that “frequency converter drives that output over 600 Hz are regulated for export in the United States by the Nuclear Regulatory Commission as they can be used for uranium enrichment.”

Making progress towards finding “a set of floating point calculations [that] can uniquely identify any processor…They can’t yet spot specific processors but they can use this technique to identify families of them…this kind of approach would allow much more specific cyberattacks than are possible today.”

4 Responses to Random bits

  1. Joe says:

    Anyone know if the new Nork enrichment site was running Seimens also?

  2. eqnets says:

    I doubt that Sig Hecker was able to tell, but other knowledgeable sources might be able to infer one way or another. His report says that “Unlike in my previous visits to Yongbyon, the technical team clearly had instructions to show us only the basics at two facilities and answer a minimum of questions. We were hurried along at every stage.” Construction evidently began in 2009 as the room had been seen before. Hecker thinks they run P-2 centrifuges but could not get dimensions or details. He went on to say that “The monitors had flow diagrams and lots of numbers displayed, but they ushered my [sic] past so quickly that I was not able to tell what they signified.”

  3. eqnets says:

    About a half hour after the previous comment Danger Room had this: http://www.wired.com/dangerroom/2010/11/could-stuxnet-mess-with-north-koreas-new-uranium-plant/ …”‘The computer-control equipment North Korea got was the same Iran got.’” …”Albright doesn’t know for sure that the North Koreans’ control system is exactly like the one the Iranians use. Siegfried Hecker, the U.S. nuclear scientist invited by Pyongyang to view the Yongbyon facility, wasn’t allowed to check out the control room thoroughly, and his report about what he saw merely says that the control room is “ultra-modern,” decked out with flat-screen computer panels.”

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