With the rollout of Claude Fable 5, Anthropic revised its data policy, mandating that customers utilizing the Fable and Mythos series models must keep prompts and model outputs on file for a minimum of 30 days. This policy shift invalidated the zero-data retention agreements that some corporate clients had previously in place. The threat intelligence report released by Anthropic showcased its robust data monitoring capabilities, which sparked concerns among enterprises regarding data security. In reaction, Palantir, NVIDIA, and Booz Allen Hamilton each adopted measures tailored to their needs. Palantir demanded irrevocable commitments to zero-data retention, NVIDIA implemented tiered isolation and model switching strategies, and Booz Allen Hamilton prohibited the integration of the commercial version of Fable into their proprietary software. Concurrently, Microsoft barred its employees from using Fable internally, and a prominent U.S. utility company also scrapped its related testing initiatives. Moreover, OpenAI is encountering analogous scrutiny (replacing 'question' with the more precise 'scrutiny' to better convey the intensity and nature of the concerns) for allegedly training models with personal interaction data without proper authorization, with corporate clients' anxieties about data security escalating by the day.