Cryptographer Matthew Green flags confusion over what ZDR actually means at OpenAI and Anthropic
matthew_d_green · x · 2026-09-10
There is confusion over what Zero Data Retention means for enterprise customers at OpenAI and Anthropic. Professor Matthew Green says the labs only claim de-identification and PII removal — neither would cover removing mathematical results, which is the "signal" customers would want kept — and it's on the labs to clarify.
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