CuriousGeorge113 was the first one to write us about the homemade HERF gun an engineer unveiled at Infowarcon '99. All stuff that you can buy from a hardware store, and disable computers at varying range, depending on size. The current model does not do permanent damage, unlike EMP.
"The vast majority of successful major crimes against property are
perpetrated by individuals abusing positions of trust."
-- Lawrence Dalzell