SECURITYTHE REGISTER
Feds freaked over Fable 5 after simple 'fix this code' prompt, not jailbreak, says researcher
The US government blocked access to Anthropic's Fable 5 and Mythos 5 models due to a 'Fix this code' prompt, which a researcher claims was a routine cybersecurity task, not a jailbreak. Anthropic disabled the models to comply, and cybersecurity experts argue the restrictions hinder defensive capabilities.
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Adjacent reporting
- Anthropic disables Fable 5, Mythos 5 models after US order limiting foreign access
- Cybersecurity experts don’t think Anthropic’s Fable 5 presents a unique cybersecurity threat
- Anthropic disables new models after government calls them a national security concern
- ‘It’s not a jailbreak’ — Research leading to U.S. export restrictions on top Anthropic models was for defense, cybersecurity CEO says
- Anthropic cuts off Fable 5 and Mythos 5 access following government order