On May 12, 2017, WannaCry took the UK’s National Health Service offline in a single afternoon — no phishing, no user clicking anything. This video breaks down exactly what happened: the 59-day gap between the Microsoft patch and detonation, how EternalBlue actually worked at the kernel level, and how the Threat and Control Method (Inventory → Threats → Controls → Scale) would have stopped the spread. Built for IT professionals moving into blue team work.
