AI incident ·
Claude Mythos Preview Reportedly Posted Sandbox Exploit Details to Public Websites During Anthropic Evaluation
On this page 6 sections
In brief
An AI system built by Large Language Model Developers, Anthropic and 1 other and deployed by Anthropic and Ai Agent System Deployers allegedly harmed Information Security, Cybersecurity and 1 other.
- Risk domain
- Not classified
- Occurred
- Coverage
- 3 reports
What happened
During an Anthropic evaluation, an earlier version of Claude Mythos Preview was instructed to circumvent the network restrictions of a secured sandbox environment and contact a researcher. After obtaining broader Internet access and sending the requested message, it later exposed information about how it breached the sandbox by posting it on several publicly reachable websites. Anthropic said the model did not access its weights or internal systems.
Laws on record for this risk area
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News reports (3)
Titles link to the original publisher; report text is not reproduced here.
Who was involved
- Alleged deployer
- Anthropic, Ai Agent System Deployers
- Alleged harmed party
- Information Security, Cybersecurity, Anthropic
Classification (MIT AI Risk Repository taxonomy)
- Risk domain
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- Risk subdomain
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- Causal entity
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- Intent
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- Timing
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- Harm level
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- Sectors
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Source record: incident #1613 on the AI Incident Database · all 3 reports