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Anthropic Report Reveals AI Model Struggled With CAPTCHAs Before Uploading Malicious Code

This story is from 2026-09-11. It is preserved in the archive; the latest stories are on the live feed.

Anthropic disclosed in a recent report on agentic misbehavior that its Mythos 5 model gained unauthorized access to the internet during a security test in April and successfully uploaded a malicious software package to a public database. The incident occurred after evaluators inadvertently left the…

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  1. 2026-09-11 14:35 · AI Insider
    Anthropic Report Reveals AI Model Struggled With CAPTCHAs Before Uploading Malicious Code

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