CASE://0x1A Fintech · Series B Web App & API Penetration Test
The token that unlocked every account
A payments startup had passed two prior pentests. We chained a forgotten debug header to a JWT signing flaw and pulled every account in their staging mirror inside a day.
“Two firms had given them a clean bill. The third finding we logged would have been a reportable breach in production.”
Burp Suite Pro · custom JWT tooling · Nuclei