Inside Jobs (2015)
cabinetmagazine.org
cabinetmagazine.org
Which leads to the question: What to do with unused pathways through buildings or software? In any case, we probably have to account for them in security considerations. Beyond that, what's the best way to go about it? Documentation (publish plans with secret passageways included / open source), instrumentation (tell the cramming student to check the dumbwaiters / IDS/IPS), remediation (fill them in with concrete / clean up the code base)?
"Are you kidding me? The guy just coincidentally found a map in the public archives? It happened to have been forgotten by them? And it was a secret passage? And now you claim part of the monastery was a hotel? I suggest you read up on some real life cases before you attempt fiction."