This is bonkers. Z.ai had initially apologised on Friday and said the data had been deleted, but users said they found the data was encrypted with a backend private key held only by Z.ai, meaning they could not open or verify their own uploaded files or independently confirm deletion.

Related:

Inside ZCode: Silently uploading your Git history to the cloud

https://news.ycombinator.com/item?id=49750694

They did open source ZCode in response

https://github.com/zai-org/ZCode