A Response to Going Analog, by M.G.
Selectric Typewriter Security Issues Back in the 1970s IBM was required by at least one of its customers to make some options available for Selectric typewriters because they discovered the Selectric design was susceptible to electronic eavesdropping that could determine what the typewriter was printing. As it turns out, mid-’70s electronics were capable of detecting not only the unique electronic signature of individual typewriter motors but also measuring the load incurred by that motor during character selection from the main power feed outside the building. So, it’s possible that even using a mechanical electric typewriter for written communications may not …