# Anthropic changes data retention policy after enterprise pushback > Source: > Published: 2026-08-21 09:59:51+00:00 # Anthropic changes data retention policy after enterprise pushback **Anthropic is easing its controversial data storage policy, letting enterprise customers keep their own data going forward.** Since June, Anthropic has stored all customer data from its powerful [Mythos and Fable models](https://the-decoder.com/claude-fable-5-anthropic-admits-wrong-tradeoff-after-invisibly-throttling-rival-ai-researchers/), along with future flagship models, for 30 days on its own servers to spot new cyberattacks that use the technology. In a report, Anthropic admitted the rule was unpopular and a business risk. The 30-day window stays in place, but under the new setup, the data will sit in the customer's cloud rather than with Anthropic. According to [Bloomberg](https://www.bloomberg.com/news/articles/2026-08-20/anthropic-plans-to-change-data-retention-policy-for-advanced-ai), the company has spent months building the new system with more than 100 customers from regulated industries. Rival [OpenAI is testing a different method](https://the-decoder.com/openai-builds-safety-system-that-catches-misuse-without-storing-customer-data/) with Databricks and Microsoft that also aims to pair security with data control. Anthropic developer Boris Cherny confirmed the plans publicly on [X](https://x.com/bcherny). The changes are set to arrive this fall. ``` AI News Without the Hype – Curated by Humans Subscribe to THE DECODER for ad-free reading, a weekly AI newsletter, our exclusive "AI Radar" frontier report six times a year, full archive access, and access to our comment section. Subscribe now ``` [Bloomberg](https://www.bloomberg.com/news/articles/2026-08-20/anthropic-plans-to-change-data-retention-policy-for-advanced-ai)