// Link · 20 January 2026

The Zero-Day Deduction

While testing a tax software API for a bug bounty, I discovered a critical Insecure Direct Object Reference (IDOR). By changing a single integer in the URL, I bypassed authentication and accessed a stranger's full tax return. I realized I was one script away from downloading the entire country's fin...

Hacker Noon

@hacker-noon · hackernoon.com

hackernoon.com

Hacker Noon@hacker-noon