User data stored in China under Chinese jurisdiction per privacy policy
DeepSeek's privacy policy explicitly states that user data — including conversation content — may be stored and processed on servers in China. The US Navy, NASA, and other government entities issued restrictions on its use shortly after launch citing data security concerns.
"The privacy policy literally says your data is stored in China. That's not a conspiracy theory — you can read it yourself. Whether that matters depends on what you're typing into it."