Scheidt spent 12 years posted overseas, including serving in Vientiane from 1963,[10] Damascus and Tel Aviv from 1966 to 1968,[11][12][13] Manila from 1971 to 1973,[14][15] and Athens from 1978 to 1980.
After Sanborn decided he wanted to incorporate some encrypted messages in his artwork, he was teamed with Scheidt, who was in the process of retiring and was called by then-director William H. Webster "The Wizard of Codes".
"[20][21][22][23][24] In 1991, journalist Bill Gertz referred to Scheidt as the "Deep Throat of Codes" while describing his clandestine meetings with Sanborn.
Scheidt manufactured the first model in his home basement workshop, and approximately 500 were in use worldwide by the United States Foreign Service as of 2002.
Ed remains deeply involved in the company's product development and expanding application solutions, just as he is in general management.
[29] In February 2010 TecSec filed a lawsuit against several large tech vendors claiming infringement of several patents covering encryption technology.
[32] Scheidt is also convenor of ISO TC68/SC2/Working group (WG) 17 for the creation of the digital currency security Technical Specification international standard.