Jim Gillogly
The computer scientist who solved three quarters of Kryptos with a computer — and showed the Beale treasure is almost certainly a hoax.
Gillogly is an American computer scientist who came up through Carnegie Mellon and RAND, where among other things he wrote the chess program TECH and ported Colossal Cave Adventure to Unix. His real passion was classical cryptanalysis, and he was long a central figure in the American Cryptogram Association.
In 1980 he showed that applying the key of the solved second Beale cipher to the other two produced suspiciously ordered alphabetic runs — hardly chance, much more likely a construction. In 1999 he went public with solutions to the first three sections of Kryptos, the sculpture outside CIA headquarters. It then emerged that a CIA analyst had solved them the year before and simply not mentioned it. The fourth section remains unsolved.