This is a fictional E-novel but as in any mystery, there will obviously be brought into play some observational skills we all possess.
The elements herein provide clues, but great caution has been taken not to name anyone other than by fictitious code references. The full facts of the story will lead those who study the details to what it is all about.
For various reasons, some third party intellectual property, others, actual locations etc or too much detail which could infer actual people or systems, some more usual phraseologies or specifics have had to be truncated, but even with all that the whole jigsaw is possible to complete. Lateral thinking may help.
Then again, the writer knew the answers before they put pen to paper as they say, so it was easier for them !