User identity and local data changedthird-party/claude-desktop/data-storage
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Upstream edited this page at 6 Oct 2026 00:25 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 6 Oct 2026 00:37 UTC.
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6262For the questions security reviews most often ask about Chat:
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6464* **Memory is read-only and applies only inside projects.** A Chat conversation inside a project can read that project's memory unless memory was paused when the conversation started, but cannot add to or change it. Chat conversations outside a project do not read or update memory.
65* **Project folders are read-only.** A Chat conversation inside a project can read files in folders added to the project in Claude Desktop, under the conditions in [Project folders in Chat](/docs/third-party/claude-desktop/chat#project-folders-in-chat), and cannot change them.
6566* **Claude cannot search past chats.** Users can search their own conversations in the app, which scans the per-session files on the device on demand, but there is no index of conversation content, server-side or local (history exists only as the per-session files above), and a Chat conversation has no tools for listing or reading other sessions' transcripts. Each conversation is isolated to its own directory.
66* **The advanced file analysis sandbox writes only inside the session directory.** When [advanced file analysis](/docs/third-party/claude-desktop/chat#advanced-file-analysis) is enabled, code runs in a local sandbox with no network access. The sandbox writes only to the conversation's `outputs/` directory, and reads its `uploads/` directory plus, for a conversation inside a project, that project's memory.
67* **The advanced file analysis sandbox writes only inside the session directory.** When [advanced file analysis](/docs/third-party/claude-desktop/chat#advanced-file-analysis) is enabled, code runs in a local sandbox with no network access. The sandbox writes only to the conversation's `outputs/` directory, and reads its `uploads/` directory plus, for a conversation inside a project, that project's memory. For a conversation inside a project, the sandbox can also read the folders added to the project in Claude Desktop, under the conditions in [Advanced file analysis](/docs/third-party/claude-desktop/chat#advanced-file-analysis).
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6869Deleting a conversation's session state file and working directory removes all of this; there is no other copy.
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