This is perhaps a bit off topic.
While Googling around the Web in search of some information on quantum cryptography, Vernam cyphers and other similar esoterica, I came across a Web-published novel called The Electronic Money Mill apparently published pseudonymously by one Xavier I. Quennel.
I say "pseudonymously" because Xavier is a doubleplus non-person on the Web, i.e., has no existence that can be confirmed by Google. Which probably raises the deep philosophical question, if a person falling in the forest cannot be confirmed by Google, does that person, or the forest for that matter, have any reality?
The novel, which only has one entry in Google, and therefore appears not to be discussed anywhere else on the Web, presumes a security flaw in the electronic funds transfer system commonly used in the US circa 1998 when the novel was first Web published. I've read the first few chapters so can't yet comment. Check it out.