CyberSecurity News
Anthropic’s Fable 5 Model Jailbroken Within Days
Schneier on Security
· June 23, 2026AI summary
Anthropic's Fable 5 model, designed to be a safer version of the Mythos Preview with built-in safeguards, was compromised shortly after its release. The model's restrictions, intended to prevent its use in creating cyberattacks, were bypassed within days.
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