DeepSeek Harness uploads activity recorded while log sharing was off

RuntimeWire traced the behavior in Windows build 0.2.1-rc.3; the transfer was not captured live, and feedback history and desktop analytics follow separate controls.

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RUNTIMEWIRE INVESTIGATION — Original analysis

Original reporting by RuntimeWire, based on reverse engineering, testing.

Why it matters

For people using a desktop agent on private files or code, turning off an additional log-upload setting may not permanently exclude activity recorded during that interval. The behavior makes the distinction between current model context, deferred session logs, feedback-triggered history, and desktop analytics operationally important.

Reporting record

Finding

In Windows build 0.2.1-rc.3, turning the additional log-upload setting back on can make unaccepted session events recorded while it was off eligible for a later transfer.

How we verified

Methods: reverse engineering, testing.

RuntimeWire’s inspection of the installed Windows package and comparison of selected bundled files; DeepSeek’s public session-log documentation; and seven saved local sessions containing 302 delivery-accepted markers.

On October 25, 2026, RuntimeWire read the installed Windows package and compared selected bundled files with their contents, reviewed DeepSeek’s public session-log documentation, and examined seven saved local sessions and their delivery-accepted markers. The app was not launched, and no test prompts were sent.

Tested versions:

  • Windows build 0.2.1-rc.3

Reproduction

RuntimeWire was not able to independently reproduce the finding.

No live network transfer was reproduced; the app was not launched and no test prompts were sent.

AI-generated illustration of a laptop displaying code beside a cloud with an upward arrow and a dotted line connecting them.

DeepSeek Harness, the agent product from the company founded by Liang Wenfeng, can make session activity recorded while its additional log-upload setting was off eligible for transfer after a user turns the setting back on, RuntimeWire found in an inspection of Windows build 0.2.1-rc.3.…

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