Fictional Tech Thriller 'Stratagems' Episode 18: Leo and Derek Zero In on a Shared Threat

In episode 18 of the serialized fiction series 'Stratagems' on DEV Community, security engineer Leo discovers unusual outbound traffic from an unknown external IP probing an ACL collector endpoint, with the request body carrying ACL's proprietary data-origin marker. Separately, Derek notices that a routine schema-validation query his sandbox sent to the same ACL collector at 23:41 coincides precisely with an automated asset-discovery scan flagged in his port activity log. Reviewing older logs, Derek also finds a previously unnoticed access attempt from three days prior — originating from a financial payment network IP — that predates his sandbox's ACL data feed redirect. Both Leo and Derek independently trace the anomalous activity back to the same source IP range, suggesting a third party has been quietly mapping infrastructure connected to ACL. The episode ends with the two characters unknowingly converging on the same unknown adversary, setting up a likely confrontation in future installments.