I built a vulnerable app and spent $1,500 seeing if LLMs could hack it

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Summary

A security researcher created a vulnerable React Native app and spent $1,500 testing if large language models (LLMs) could exploit it, with the goal of reproducing common class of exploits found in multiple apps.

Why it matters

The experiment highlights the potential of LLMs in identifying vulnerabilities in applications, and the importance of secure coding practices.

Related coverage

Hacker News Front PageI built a vulnerable app and spent $1,500 seeing if LLMs could hack it6/4/2026, 9:31:03 PM

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