There are voices in the industrial security community advocating a return to hard-wired protective relays, discarding two decades of progress in this space. But, a practical solution is to protect the protection. In power plants, as in high voltage substations, protective relays can be connected to networks separate from the main control network and integrated with the main control network. Read the new blog post by Andrew Ginter
Critical infrastructure OT equipment directly connected to the Internet is the focus of the just-issued and very long NSA/CISA AA20-205A alert. Surprises: this is the first alert recommending a manual-ops fall-back plan (resilience) and a tamper-proof repository for “gold” images (to use during manual ops emergencies). Read here Andrew Ginter’s analysis
Ransomware continues to evolve and sophisticated phishing attacks are the most popular attack vector. James McQuiggan of KnowBe4 explores ransomware, phishing and what we can do about it.
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