

The NSA sees this as a threat to national security and tries to neutralize it.Įnsei dies of a heart attack. Ensei threatens to release the code to his partner, code named “North Dakota”, who would then release the code worldwide if Ensei should die.

His reason was simple vengeance for mistreatment. Susan later found out the maker of the code, Ensei Tankado, who was a former NSA employee. Commander Strathmore, the head of the NSA’s code breaking unit, calls on Susan Fletcher, one of their to analysts, who was the fiancée of David Becker, a professor who also had a knack for breaking codes. Eventually they had to call on their top analysts to help. The code was called Digital Fortress and it couldn’t be decoded by the NSA’s code breaking machine.

It starts off with the NSA (National Security Agency) of the US, of course, encountering a serious code problem. Dan Brown starts off his novel like any regular book or movie.
