{"data":{"id":"c3f35f45-e759-4df0-b861-912fe1230e67","title":"Microsoft restricts Claude Fable for employees over data retention concerns","summary":"Microsoft is restricting employee access to Claude Fable 5, Anthropic's new AI model, because of concerns about its data retention requirements. While the model is available to external GitHub Copilot and Foundry customers, Microsoft employees cannot access it through their internal tools because Claude Fable 5 does not operate under Zero Data Retention (ZDR, a policy where user data is not stored after interactions) like other Claude models do.","solution":"N/A -- no mitigation discussed in source.","labels":["security","privacy"],"sourceUrl":"https://www.theverge.com/report/947575/microsoft-claude-fable-5-restricted-internally","publishedAt":"2026-06-10T16:50:23.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["Microsoft","Anthropic"],"affectedVendorsRaw":["Microsoft","Anthropic","Claude Fable","Claude","GitHub Copilot"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-06-10T16:50:23.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality"],"aiComponentTargeted":"api","llmSpecific":true,"classifierConfidence":0.92,"researchCategory":null,"atlasIds":null}}