The existence of the Selectric bug was mentioned in an issue of Popular Science from 1987 [1]. In the article, a typewriter salesman from New York correctly de

The existence of the Selectric bug was mentioned in an issue of Popular Science from 1987 [1]. In the article, a typewriter salesman from New York correctly describes the working principle of the bug, even though the exact working principle of the bug was not publicly known at the time. The six metal bars as well as magnetic switches are mentioned. See the paragraph "Low-Tech bugging" at the bottom of page 87, as well as the subsequent paragraph "The cold (bugging) war" on page 88. [1]: https://books.google.com/books?id=mgAAAAAAMBAJ&pg=PA87#v=onepage&q&f=false https://books.google.com/books?id=mgAAAAAAMBAJ&pg=PA87#v=one...