2012 — Saderat: After finding a security vulnerability in Iran's…
Technical writeup
After finding a security vulnerability in Iran's banking system, software manager Khosrow Zarefarid wrote a formal report and sent it to the CEOs of all the affected banks across the country. When the banks ignored his findings, he hacked 3 million bank accounts, belonging to at least 22 different banks, to prove his point.
Root cause
Hacked