ScribbleLive

@Ralph Unger Sure, but are they supposed to be fully covered in water inside the reactor's core when not in cold shut-down?

A VW bug uses air cooling, a Corvette needs water cooling.

What do you call a bad electrician? A shock absorber.

You a lighting guy Rob? I am a stagehand.

If you need a lighting guy .. :-) Stagecraft is the only job where I can blow up stuff and get paid to do it. Not anymore as they have changed the laws. I still like it though.

What about the jumpers pay? www.godlikeproductions.com

@elainekirk From that same Bloomberg link:
Ukraine last week failed to raise the $1 billion needed to seal Chernobyl’s reactor with more permanent methods, as budget concerns and the accident at Fukushima caused some governments to balk at further spending.

U.S. federal lab linked to Stuxnet breached
It is somewhat ironic, then, that the breach was the result of two employees falling for a malicious email containing a link to a page that exploited a remote-code execution vulnerability in the Internet Explorer browser.

According to Wired, the email was sent to about 530 lab employees, of which 57 believed that the email was coming from the institution's human resources department and clicked on the link. Of those 57 machines, only two got infected.

It seems that the malware inserted in those two computers lay dormant for a week, and then started to send out stolen data from one of them to a remote server. This was discovered by the administrators who immediately shut down and cleaned up the machine, but a week later, they discovered that other servers were also infected - hence, the total shutdown of Internet access.
www.net-security.org

SO embarrassing...
Thomas Zacharia, the deputy director of the lab, didn't say what data had been stolen, but he confirmed it was encrypted. He hopes that the investigation will reveal the nature of the data and the destination of the stolen batch. He also commented that the malware used in the attack was designed to hide on the system and to delete itself if it was unsuccessful on a particular system.

According to a New York Times article, the Oak Ridge National Laboratory was used to test and reveal the vulnerabilities that allowed the Stuxnet worm to target the Natanz nuclear plant. This claim being now in the open, it is easy to see how speculations about the origin of the attack that hit the lab's network are inevitably going to lean towards Iran.
www.net-security.org

@Ralph Unger The full-length Vanity Fair article on STUXNET is amazing.
www.vanityfair.com

A hard limit means that the limit from the manufacturer is the limit that the device can run at. @ seconds to code that and they did not.

It can also be done mechanically.

@Ralph Unger The worm was INSANELY sophisticated. Not sure hard limits would hold, (unless mechanical, which might not be practicable with these devices). Read the full VF article...

@Ralph Unger I've worked with some tabletop guys who built some of them most sophisticated rigs I've ever seen. One twisted 20 lipsticks sequentially all in a row. Like a watchmaker's art.

Yep I dig that, but I have a relay that cuts off power if the centrifuge goes over 50k rpm. The Iranians did not have such a thing LOL.

That is a standard for all automation, that when limits are exceeded it shuts off.

@Ralph Unger But with modern industrial control it's all software, and all networked. This was done with Siemens involved in the back-door code, etc. Air Gap Security is required. And no portable media. They make PCs without ports and jacks and with hardened drives etc. for secure sites.

@Ralph Unger On your nuclear centrifuges with Siemens controllers?