I Built a Hackbot That Had to Prove Its Bugs

Everything here happened inside bug bounty programs, in scope and with permission. I reviewed every finding and submitted it by hand. Third-party data is redacted, and the examples were disclosed before publication. For the past few months, I have been testing whether AI can handle the repetitive parts of bug bounty hunting without deciding on its own that a bug is real. Mapping sites, reading JavaScript, comparing requests and revisiting old leads takes time, so I wanted a helper that could keep doing that work and bring me only what deserved a closer look. ...

September 15, 2026 · 18 min · 3792 words · Jesus Lujan

Hacking eToro's AI Assistant: Stealing Any User's Financial Data With a Single Tweet

All issues were responsibly reported to eToro through Bugcrowd and have been acknowledged. Hi, I’m back. This time I wandered somewhere I hadn’t planned to go. I wasn’t hunting for AI bugs at all. I was poking at eToro’s trading platform, the usual stuff, IDOR on portfolio endpoints, parameter tampering, when a little chat bubble caught my eye down in the corner. Torii, eToro’s AI assistant. Ask it about your portfolio, your balances, the market, and it just answers. ...

July 13, 2026 · 7 min · 1443 words · Jesus Lujan