I Studied 14 Real Security Engineering Interview Problems. Here Is Everything I Learned. By Tanveer Salim (fosres) — Security Engineer in training, Intel IPAS alumnus, STRIDE threat modeler. All diagrams, challenge PDFs, and exercises live at github.com/fosres/SecEng-Exercises . Star it if this is useful. The Horror Story: When AI Cannot Save You The following is a fictional composite scenario inspired by real supply chain attacks — CircleCI (January 2023), Codecov (April 2021), and SolarWinds (December 2020). It did not necessarily happen to any specific company. It absolutely could. Imagine it is 2 AM on a Tuesday. The on-call engineer at a major AI company — let us call them NeuralCorp — gets paged. Their threat detection pipeline is firing on something unusual: a container image that passed all CI/CD scans is exhibiting anomalous network behavior in production. It is calling out to an IP address in Eastern Europe at 30-second intervals. The engineer pulls the image digest.…