The PRC National Intelligence Law mandates disclosure of user data to Chinese government agencies without independent judicial review, and foreign users have no meaningful legal recourse in Chinese courts to challenge data handling or IP claims. Combined with weak deletion guarantees (server-side data persists even when chat history is deleted) and default opt-in training use, user content is functionally unprotected from both state access and model training.

Do not use DeepSeek for sensitive proprietary content, health data, or personally identifiable information; treat any input as potentially accessible to PRC authorities and trainable without effective user control. If use is necessary, apply system-level friction controls (e.g., compartmentalizing sessions, minimizing data retention locally), but recognize these do not mitigate the underlying legal and jurisdictional risks.