| Retention | Copilot interactions stored in a hidden mailbox folder and governed by Purview retention policies (default: kept until a policy deletes them) |
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| Training | Not stated on checked page |
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| eDiscovery / export | Yes: searchable with Purview eDiscovery; Purview also covers third-party AI apps (ChatGPT Enterprise, Gemini, DeepSeek, etc.) |
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| Admin controls | Purview retention policies for Copilot & AI app locations (retain and/or delete) |
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| Review status | verified |
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Not legal advice. Summaries of public vendor documentation as of 2026-10-15. Always check the linked official source.