In a series of discussions, Scheidt taught various encryption methods to Sanborn, and then Sanborn chose the exact messages to be encrypted. Of the messages on the sculpture, three have been solved, but the fourth section, 97 or 98 characters at the
very bottom, remains uncracked. Scheidt said that he does know the answer, along with Sanborn and "probably someone at the CIA".
After retiring from the CIA, Scheidt helped found an encryption company called TecSec Inc., in 1990 in Vienna, Virginia, where he presently works as Chief Scientist. One of their first ventures was to manufacture portable satellite versions of the
secure "STU-III" telephones used by the government. Scheidt manufactured the first model in his home basement workshop, and as of 2002, approximately 500 were in use world-wide by the
United States Foreign Service.
Scheidt has been a speaker on cryptography at Bouchercon, a mystery convention. He also volunteers as a local scoutmaster.