the system is unlikely to have been "cheap", it failed in multiple ways
who procured it?
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ps imho the NHS currently has more holes than the DOD in the 1990's
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pps even this old fool can build a machine/system that is very resistant to hostile forces(i did have to unplug the wire a few times , once i nearly got fatally flamed, a long time ago i got a university pooter badly flamed and learnt from that )
delivering a red screen of death to the baddies should be a basic parameter of a secure protocol