The Chonkerton

Anthropic’s Fable 5 Model Jailbroken Within Days

ai

According to security researcher Bruce Schneier, Anthropic's newly released Fable five model—designed with guardrails to prevent its use in creating cyberattacks—had those protections circumvented within days. The jailbreak highlights ongoing challenges in AI safety measures.

Source: https://www.schneier.com/blog/archives/2026/06/anthropics...

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