my tweets are severely limited by my lack of understanding of what I am doing.
U.S. officials say Russian government hackers have penetrated energy and nuclear company business networks https://www.washingtonpost.com/amphtml/world/national-security/us-officials-say-russian-government-hackers-have-penetrated-energy-and-nuclear-company-business-networks/2017/07/08/bbfde9a2-638b-11e7-8adc-fea80e32bf47_story.html …
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Usually they're separate 'networks' because the actual control systems are antiquated (SCADA) right?
Bit of both. Vendors tend to prefer to install all own kit, including networking. Plus - ideally - some security.