Editing Digital Fortress (section)

==Inaccuracies and criticism==
The book was criticized by ''GCN'' for portraying facts about the NSA incorrectly and for misunderstanding the technology in the book, especially for the time when it was published.<ref>{{cite news |last=Breen II |first=John |title=Why can't novels get technology right? |work=GCN |publisher=Public Sector Media Group |location=United States |date=2011-08-02 |url=https://gcn.com/articles/2011/08/02/why-dont-authors-get-technology-right.aspx |access-date=2017-10-14 |archive-date=October 14, 2017 |archive-url=https://web.archive.org/web/20171014233724/https://gcn.com/articles/2011/08/02/why-dont-authors-get-technology-right.aspx |url-status=dead }}</ref>

In 2005, the town hall of the Spanish city of Seville invited Dan Brown to visit the city, in order to dispel the inaccuracies about Seville that Brown represented within the book.<ref>{{cite news |last=Nash |first=Elizabeth |title=Dan Brown: Seville smells and is corrupt. City: You come here and say that |work=The Independent |location=United Kingdom |date=2005-08-27 |url= https://www.independent.co.uk/news/world/europe/dan-brown-seville-smells-and-is-corrupt-city-you-come-here-and-say-that-308609.html |access-date=2017-10-14}}</ref>

Although [[uranium-235]] was used in the bomb on Hiroshima, the nuclear bomb dropped on Nagasaki used [[plutonium-239]] (created from U-238). [[Uranium-238]] is non-fissile.

Julius Caesar's cypher was not as simple as the one described in the novel, based on square numbers. In ''[[The Code Book]]'' by [[Simon Singh]] it is described as a transposition cypher which was undecipherable until centuries later.

The story behind the meaning of "sincere" is based on [[false etymology]].<ref>{{Cite web|url=https://www.etymonline.com/search?q=sincere|title = Sincere &#124; Search Online Etymology Dictionary}}</ref>

It is also untrue that in Spain (or in any other [[Catholic Church|Catholic]] country) that the [[Eucharist|Holy Communion]] takes place at the beginning of [[Mass (liturgy)|Mass]]; Communion takes place very near the end.

In 2020, the book was featured on the podcast ''[[372 Pages We'll Never Get Back]]'', which critiques literature deemed low-quality.