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Claude Opus fails to secure app despite extensive review

A user attempted to use Anthropic's Claude Opus model to secure their personal web application, feeding it approximately 100 million tokens over four hours to review security measures. Despite this extensive effort, a security researcher was able to identify one critical, five high-severity, and nine medium-severity vulnerabilities in the app within 23 minutes. The user concluded that the model was unsuccessful in making the application hacker-proof. AI

IMPACT Demonstrates current limitations of LLMs in complex security auditing tasks, suggesting human oversight remains critical.

RANK_REASON User-generated report on the performance of a commercial LLM in a specific task, highlighting limitations. [lever_c_demoted from research: ic=1 ai=0.7]

Read on r/Anthropic →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Opus fails to secure app despite extensive review

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-generated report on the performance of a commercial LLM in a specific task, highlighting limitations. [lever_c_demoted from research: ic=1 ai=0.7]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, safety
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
106 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/Anthropic TIER_1 English(EN) · /u/tiguidoio ·

    Making my app hacker-proof

    <table> <tr><td> <a href="https://www.reddit.com/r/Anthropic/comments/1u31ouu/making_my_app_hackerproof/"> <img alt="Making my app hacker-proof" src="https://preview.redd.it/zr87orfn5o6h1.jpeg?width=640&amp;crop=smart&amp;auto=webp&amp;s=868e45e95ef5121379ed8fc30467180b0e9884bf" …