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Showing posts from April, 2026

When absolute zero gets too hot to handle

  When Absolute Zero Gets Too Hot to Handle What MRI Superconducting Magnets Reveal About Risk in Operational Technology I recently spoke at an OT cyber security event about a subject that, on the surface, looks highly specialised: superconducting magnets used in MRI scanners. What surprised me was not the level of interest, but the recognition in the room. Again and again, people from very different industries pointed out that the risk patterns I was describing felt immediately familiar. MRI cryogenics turn out not to be a niche curiosity, but a particularly clear example of a wider problem that affects many forms of operational technology. Why MRI belongs in the OT conversation Operational Technology refers to the hardware and software systems that monitor, control, and directly influence physical processes. Unlike IT, failures in OT are not abstract. They can stop production, damage physical assets, or put people in danger. MRI cryogenic systems fit squarely into this category. ...