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judgecorp writes "Britain must build defences against an EMP bomb, the UK Secretary of Defence Phillip Hammond told a conference today. Electromagnetic Pulse devices mimic the result of a solar flare or a nuclear explosion in the atmosphere, creating a storm of electromagnetic radiation, which can break mobile networks and satellite systems. Any preparation for olar storms must also consider the possibility of deliberate electromagnetic events, warns Hammond." Link to Original Source
It is masked but always present.
I don't know who built to it.
It came before the first kernel.